_healpix_29 int64 | band list | view list | array list | scale list | jd float32 | diffmaglim float32 | magpsf float32 | sigmapsf float32 | chipsf float32 | magap float32 | sigmagap float32 | distnr float32 | magnr float32 | chinr float32 | sharpnr float32 | sky float32 | magdiff float32 | fwhm float32 | classtar float32 | mindtoedge float32 | seeratio float32 | magapbig float32 | sigmagapbig float32 | sgmag1 float32 | srmag1 float32 | simag1 float32 | szmag1 float32 | sgscore1 float32 | distpsnr1 float32 | jdstarthist float32 | scorr float32 | sgmag2 float32 | srmag2 float32 | simag2 float32 | szmag2 float32 | sgscore2 float32 | distpsnr2 float32 | sgmag3 float32 | srmag3 float32 | simag3 float32 | szmag3 float32 | sgscore3 float32 | distpsnr3 float32 | jdstartref float32 | dsnrms float32 | ssnrms float32 | magzpsci float32 | magzpsciunc float32 | magzpscirms float32 | clrcoeff float32 | clrcounc float32 | neargaia float32 | neargaiabright float32 | maggaia float32 | maggaiabright float32 | exptime float32 | drb float32 | acai_h float32 | acai_v float32 | acai_o float32 | acai_n float32 | acai_b float32 | new_drb float32 | peakmag float32 | maxmag float32 | peakmag_so_far float32 | maxmag_so_far float32 | age float32 | days_since_peak float32 | days_to_peak float32 | ra float64 | dec float64 | label int64 | fid int64 | programid int64 | field int64 | nneg int64 | nbad int64 | ndethist int64 | ncovhist int64 | nmtchps int64 | nnotdet int64 | N int64 | healpix int64 | isdiffpos bool | is_SN bool | near_threshold bool | is_rise bool | OBJECT_ID_ string | source_set string | split string | object_id int64 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
5,205,237,378,833,472 | [
"g",
"g",
"g"
] | [
"science",
"reference",
"difference"
] | [[[0.016353139653801918,0.012970472685992718,0.01546421367675066,0.015565923415124416,0.014651999808(...TRUNCATED) | [
1.0099999904632568,
1.0099999904632568,
1.0099999904632568
] | 2,458,787.75 | 19.974174 | 19.047394 | 0.175495 | 1.288261 | 18.947399 | 0.109 | 2.048233 | 19.702999 | 3.263 | 0.229 | -0.186776 | -0.099993 | 5.72 | 0.722 | 619.341492 | 0.64571 | 18.8521 | 0.1262 | 18.358601 | 17.6724 | 17.171801 | 16.962099 | 0.016667 | 3.982629 | 2,458,784 | 12.223401 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | 2,458,315 | 4.238012 | 15.610688 | 26.131393 | 0.000116 | 0.056234 | -0.080865 | 0.000135 | 3.97258 | -999 | 18.348284 | -999 | 30 | 0.998773 | null | null | null | null | null | 0.88416 | 18.255407 | 19.552307 | 18.618029 | 19.37566 | 3.986794 | 0.094838 | 3.891956 | 49.807125 | 7.586199 | 1 | 1 | 1 | 453 | 1 | 0 | 7 | 196 | 1 | 189 | 7 | 4 | true | true | false | true | ZTF19acjdwqv | trues | train | 1,033,361,844,915,015,000 |
5,205,237,378,833,472 | [
"g",
"g",
"g"
] | [
"science",
"reference",
"difference"
] | [[[0.016353139653801918,0.012970472685992718,0.01546421367675066,0.015565923415124416,0.014651999808(...TRUNCATED) | [
1.0099999904632568,
1.0099999904632568,
1.0099999904632568
] | 2,458,787.75 | 19.974174 | 19.047394 | 0.175495 | 1.288261 | 18.947399 | 0.109 | 2.048233 | 19.702999 | 3.263 | 0.229 | -0.186776 | -0.099993 | 5.72 | 0.722 | 619.341492 | 0.64571 | 18.8521 | 0.1262 | 18.358601 | 17.6724 | 17.171801 | 16.962099 | 0.016667 | 3.982629 | 2,458,784 | 12.223401 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | 2,458,315 | 4.238012 | 15.610688 | 26.131393 | 0.000116 | 0.056234 | -0.080865 | 0.000135 | 3.97258 | -999 | 18.348284 | -999 | 30 | 0.998773 | null | null | null | null | null | 0.88416 | 18.255407 | 19.552307 | 18.618029 | 19.37566 | 3.986794 | 0.094838 | 3.891956 | 49.807125 | 7.586199 | 1 | 1 | 1 | 453 | 1 | 0 | 7 | 196 | 1 | 189 | 7 | 4 | true | true | false | true | ZTF19acjdwqv | trues | train | 1,033,361,844,915,015,000 |
5,205,237,401,799,872 | [
"g",
"g",
"g"
] | [
"science",
"reference",
"difference"
] | [[[0.01549877692013979,0.017191827297210693,0.01415324117988348,0.013815924525260925,0.0173581205308(...TRUNCATED) | [
1.0099999904632568,
1.0099999904632568,
1.0099999904632568
] | 2,458,790.75 | 20.388239 | 18.721716 | 0.104373 | 5.443097 | 18.593201 | 0.0758 | 2.188034 | 19.702999 | 3.263 | 0.229 | -0.022928 | -0.128516 | 2.98 | 0.956 | 619.89563 | 0.899624 | 18.6231 | 0.0973 | 18.358601 | 17.6724 | 17.171801 | 16.962099 | 0.016667 | 3.987552 | 2,458,784 | 27.133568 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | 2,458,315 | 22.195671 | 36.406235 | 26.146715 | 0.000099 | 0.063801 | -0.125708 | 0.000106 | 3.977599 | -999 | 18.348284 | -999 | 30 | 0.999993 | null | null | null | null | null | 0.999228 | 18.255407 | 19.552307 | 18.558348 | 19.37566 | 6.940081 | 1.970949 | 4.969132 | 49.807023 | 7.586241 | 1 | 1 | 1 | 453 | 0 | 0 | 13 | 202 | 1 | 189 | 1 | 4 | true | true | false | true | ZTF19acjdwqv | trues | train | 1,036,315,124,915,015,000 |
5,205,237,401,799,872 | [
"g",
"g",
"g"
] | [
"science",
"reference",
"difference"
] | [[[0.01549877692013979,0.017191827297210693,0.01415324117988348,0.013815924525260925,0.0173581205308(...TRUNCATED) | [
1.0099999904632568,
1.0099999904632568,
1.0099999904632568
] | 2,458,790.75 | 20.388239 | 18.721716 | 0.104373 | 5.443097 | 18.593201 | 0.0758 | 2.188034 | 19.702999 | 3.263 | 0.229 | -0.022928 | -0.128516 | 2.98 | 0.956 | 619.89563 | 0.899624 | 18.6231 | 0.0973 | 18.358601 | 17.6724 | 17.171801 | 16.962099 | 0.016667 | 3.987552 | 2,458,784 | 27.133568 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | 2,458,315 | 22.195671 | 36.406235 | 26.146715 | 0.000099 | 0.063801 | -0.125708 | 0.000106 | 3.977599 | -999 | 18.348284 | -999 | 30 | 0.999993 | null | null | null | null | null | 0.999228 | 18.255407 | 19.552307 | 18.558348 | 19.37566 | 6.940081 | 1.970949 | 4.969132 | 49.807023 | 7.586241 | 1 | 1 | 1 | 453 | 0 | 0 | 13 | 202 | 1 | 189 | 1 | 4 | true | true | false | true | ZTF19acjdwqv | trues | train | 1,036,315,124,915,015,000 |
5,205,237,403,041,193 | [
"r",
"r",
"r"
] | [
"science",
"reference",
"difference"
] | [[[0.015435912646353245,0.014981232583522797,0.015921665355563164,0.015383007004857063,0.01459388807(...TRUNCATED) | [
1.0099999904632568,
1.0099999904632568,
1.0099999904632568
] | 2,458,811.75 | 19.972393 | 18.927689 | 0.126394 | 2.008826 | 18.781099 | 0.1265 | 3.858614 | 17.149 | 4.896 | 0.55 | -0.117006 | -0.146588 | 3.82 | 0.929 | 612.831482 | 0.728431 | 18.6768 | 0.1443 | 18.358601 | 17.6724 | 17.171801 | 16.962099 | 0.016667 | 3.933985 | 2,458,784 | 15.192198 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | 2,458,320 | 9.864177 | 20.56189 | 26.045689 | 0.000035 | 0.038916 | 0.071129 | 0.000034 | 3.924109 | -999 | 18.348284 | -999 | 30 | 0.99997 | null | null | null | null | null | 0.993194 | 18.255407 | 19.552307 | 18.255407 | 19.552307 | 27.921875 | 13.964132 | 13.957743 | 49.806969 | 7.586242 | 1 | 2 | 1 | 453 | 0 | 0 | 27 | 216 | 1 | 189 | 2 | 4 | true | true | false | false | ZTF19acjdwqv | trues | train | 1,057,296,924,915,015,000 |
5,205,237,403,041,193 | [
"r",
"r",
"r"
] | [
"science",
"reference",
"difference"
] | [[[0.015435912646353245,0.014981232583522797,0.015921665355563164,0.015383007004857063,0.01459388807(...TRUNCATED) | [
1.0099999904632568,
1.0099999904632568,
1.0099999904632568
] | 2,458,811.75 | 19.972393 | 18.927689 | 0.126394 | 2.008826 | 18.781099 | 0.1265 | 3.858614 | 17.149 | 4.896 | 0.55 | -0.117006 | -0.146588 | 3.82 | 0.929 | 612.831482 | 0.728431 | 18.6768 | 0.1443 | 18.358601 | 17.6724 | 17.171801 | 16.962099 | 0.016667 | 3.933985 | 2,458,784 | 15.192198 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | 2,458,320 | 9.864177 | 20.56189 | 26.045689 | 0.000035 | 0.038916 | 0.071129 | 0.000034 | 3.924109 | -999 | 18.348284 | -999 | 30 | 0.99997 | null | null | null | null | null | 0.993194 | 18.255407 | 19.552307 | 18.255407 | 19.552307 | 27.921875 | 13.964132 | 13.957743 | 49.806969 | 7.586242 | 1 | 2 | 1 | 453 | 0 | 0 | 27 | 216 | 1 | 189 | 2 | 4 | true | true | false | false | ZTF19acjdwqv | trues | train | 1,057,296,924,915,015,000 |
5,205,237,403,063,475 | [
"r",
"r",
"r"
] | [
"science",
"reference",
"difference"
] | [[[0.014207114465534687,0.013965998776257038,0.0154495220631361,0.015508471988141537,0.0144888777285(...TRUNCATED) | [
1.0099999904632568,
1.0099999904632568,
1.0099999904632568
] | 2,458,804.75 | 19.500937 | 18.561152 | 0.096714 | 0.91724 | 18.3794 | 0.1218 | 3.861133 | 17.149 | 4.896 | 0.55 | -0.294751 | -0.181752 | 3.1 | 0.982 | 628.335388 | 0.953702 | 18.267 | 0.1394 | 18.358601 | 17.6724 | 17.171801 | 16.962099 | 0.016667 | 3.934922 | 2,458,784 | 15.560242 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | 2,458,320 | 10.843623 | 20.247196 | 26.043152 | 0.000029 | 0.039099 | 0.085744 | 0.000029 | 3.925054 | -999 | 18.348284 | -999 | 30 | 0.999807 | null | null | null | null | null | 0.999923 | 18.255407 | 19.552307 | 18.255407 | 19.37566 | 20.875069 | 6.917326 | 13.957743 | 49.806966 | 7.586243 | 1 | 2 | 1 | 453 | 1 | 0 | 22 | 211 | 1 | 189 | 5 | 4 | true | true | false | false | ZTF19acjdwqv | trues | train | 1,050,250,114,915,015,000 |
5,205,237,403,063,475 | [
"r",
"r",
"r"
] | [
"science",
"reference",
"difference"
] | [[[0.014207114465534687,0.013965998776257038,0.0154495220631361,0.015508471988141537,0.0144888777285(...TRUNCATED) | [
1.0099999904632568,
1.0099999904632568,
1.0099999904632568
] | 2,458,804.75 | 19.500937 | 18.561152 | 0.096714 | 0.91724 | 18.3794 | 0.1218 | 3.861133 | 17.149 | 4.896 | 0.55 | -0.294751 | -0.181752 | 3.1 | 0.982 | 628.335388 | 0.953702 | 18.267 | 0.1394 | 18.358601 | 17.6724 | 17.171801 | 16.962099 | 0.016667 | 3.934922 | 2,458,784 | 15.560242 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | 2,458,320 | 10.843623 | 20.247196 | 26.043152 | 0.000029 | 0.039099 | 0.085744 | 0.000029 | 3.925054 | -999 | 18.348284 | -999 | 30 | 0.999807 | null | null | null | null | null | 0.999923 | 18.255407 | 19.552307 | 18.255407 | 19.37566 | 20.875069 | 6.917326 | 13.957743 | 49.806966 | 7.586243 | 1 | 2 | 1 | 453 | 1 | 0 | 22 | 211 | 1 | 189 | 5 | 4 | true | true | false | false | ZTF19acjdwqv | trues | train | 1,050,250,114,915,015,000 |
5,205,237,403,065,760 | [
"g",
"g",
"g"
] | [
"science",
"reference",
"difference"
] | [[[0.016165975481271744,0.014370942488312721,0.01851542666554451,0.010832424275577068,0.015321242623(...TRUNCATED) | [
1.0099999904632568,
1.0099999904632568,
1.0099999904632568
] | 2,458,805 | 19.433994 | 19.038977 | 0.15193 | 0.967592 | 18.839701 | 0.1771 | 2.236781 | 19.702999 | 3.263 | 0.229 | -0.619414 | -0.199277 | 3.63 | 0.977 | 615.539917 | 0.888208 | 18.9014 | 0.2395 | 18.358601 | 17.6724 | 17.171801 | 16.962099 | 0.016667 | 3.943643 | 2,458,784 | 10.575103 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | 2,458,315 | 5.769595 | 12.325761 | 26.154978 | 0.000067 | 0.040599 | -0.09129 | 0.000084 | 3.933778 | -999 | 18.348284 | -999 | 30 | 0.999937 | null | null | null | null | null | 0.999508 | 18.255407 | 19.552307 | 18.255407 | 19.37566 | 21.005312 | 7.047569 | 13.957743 | 49.806964 | 7.586246 | 1 | 1 | 1 | 453 | 3 | 0 | 23 | 212 | 1 | 189 | 6 | 4 | true | true | false | false | ZTF19acjdwqv | trues | train | 1,050,380,354,915,015,000 |
5,205,237,403,065,760 | [
"g",
"g",
"g"
] | [
"science",
"reference",
"difference"
] | [[[0.016165975481271744,0.014370942488312721,0.01851542666554451,0.010832424275577068,0.015321242623(...TRUNCATED) | [
1.0099999904632568,
1.0099999904632568,
1.0099999904632568
] | 2,458,805 | 19.433994 | 19.038977 | 0.15193 | 0.967592 | 18.839701 | 0.1771 | 2.236781 | 19.702999 | 3.263 | 0.229 | -0.619414 | -0.199277 | 3.63 | 0.977 | 615.539917 | 0.888208 | 18.9014 | 0.2395 | 18.358601 | 17.6724 | 17.171801 | 16.962099 | 0.016667 | 3.943643 | 2,458,784 | 10.575103 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | -999 | 2,458,315 | 5.769595 | 12.325761 | 26.154978 | 0.000067 | 0.040599 | -0.09129 | 0.000084 | 3.933778 | -999 | 18.348284 | -999 | 30 | 0.999937 | null | null | null | null | null | 0.999508 | 18.255407 | 19.552307 | 18.255407 | 19.37566 | 21.005312 | 7.047569 | 13.957743 | 49.806964 | 7.586246 | 1 | 1 | 1 | 453 | 3 | 0 | 23 | 212 | 1 | 189 | 6 | 4 | true | true | false | false | ZTF19acjdwqv | trues | train | 1,050,380,354,915,015,000 |
mmu_btsbot HATS Catalog Collection
This is the collection of HATS catalogs representing mmu_btsbot.
This dataset is part of the Multimodal Universe, a large-scale collection of multimodal astronomical data. For full details, see the paper: The Multimodal Universe: Enabling Large-Scale Machine Learning with 100TBs of Astronomical Scientific Data.
Access the catalog
We recommend the use of the LSDB Python framework to access HATS catalogs.
LSDB can be installed via pip install lsdb or conda install conda-forge::lsdb,
see more details in the docs.
The following code provides a minimal example of opening this catalog:
import lsdb
# Full sky coverage.
catalog = lsdb.open_catalog("https://huggingface.co/datasets/UniverseTBD/mmu_btsbot")
# One-degree cone.
catalog = lsdb.open_catalog(
"https://huggingface.co/datasets/UniverseTBD/mmu_btsbot",
search_filter=lsdb.ConeSearch(ra=1.0, dec=78.0, radius_arcsec=3600.0),
)
Each catalog in this collection is represented as a separate Apache Parquet dataset and can be accessed with a variety of tools, including pandas, pyarrow, dask, Spark, DuckDB.
File structure
This catalog is represented by the following files and directories:
collection.properties— textual metadata file describing the HATS collection of catalogsmmu_btsbot— main HATS catalog directorydataset/— Apache Parquet dataset directory for the main catalog- ... parquet metadata and data files in sub directories ...
hats.properties— textual metadata file describing the main HATS catalogpartition_info.csv— CSV file with a list of catalog HEALPix tiles (catalog partitions)skymap.fits— HEALPix skymap FITS file with row-counts per HEALPix tile of fixed order 10
mmu_btsbot_10arcs/— default margin catalog to ensure data completeness in cross-matching, the margin threshold is 10.0 arcseconds- ... margin catalog files and directories ...
Catalog metadata
Metadata of the main HATS catalog, excluding margins and indexes:
| Number of rows | Number of columns | Number of partitions | Size on disk | HATS Builder |
|---|---|---|---|---|
| 818,214 | 92 | 2,078 | 18.9 GiB | hats-import v0.7.1, hats v0.7.1 |
Catalog columns
The main HATS catalog contains the following columns:
| Name | _healpix_29 |
band |
view |
array |
scale |
jd |
diffmaglim |
magpsf |
sigmapsf |
chipsf |
magap |
sigmagap |
distnr |
magnr |
chinr |
sharpnr |
sky |
magdiff |
fwhm |
classtar |
mindtoedge |
seeratio |
magapbig |
sigmagapbig |
sgmag1 |
srmag1 |
simag1 |
szmag1 |
sgscore1 |
distpsnr1 |
jdstarthist |
scorr |
sgmag2 |
srmag2 |
simag2 |
szmag2 |
sgscore2 |
distpsnr2 |
sgmag3 |
srmag3 |
simag3 |
szmag3 |
sgscore3 |
distpsnr3 |
jdstartref |
dsnrms |
ssnrms |
magzpsci |
magzpsciunc |
magzpscirms |
clrcoeff |
clrcounc |
neargaia |
neargaiabright |
maggaia |
maggaiabright |
exptime |
drb |
acai_h |
acai_v |
acai_o |
acai_n |
acai_b |
new_drb |
peakmag |
maxmag |
peakmag_so_far |
maxmag_so_far |
age |
days_since_peak |
days_to_peak |
ra |
dec |
label |
fid |
programid |
field |
nneg |
nbad |
ndethist |
ncovhist |
nmtchps |
nnotdet |
N |
healpix |
isdiffpos |
is_SN |
near_threshold |
is_rise |
OBJECT_ID_ |
source_set |
split |
object_id |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Data Type | int64 | list<element: string> | list<element: string> | list<element: list<element: list<element: float>>> | list<element: float> | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | float | double | double | int64 | int64 | int64 | int64 | int64 | int64 | int64 | int64 | int64 | int64 | int64 | int64 | bool | bool | bool | bool | string | string | string | int64 |
| Value count | 818,214 | 2,454,642 | 2,454,642 | N/A | 2,454,642 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 | 818,214 |
| Example row | 270210874492301921 | [r, r, r] | [science, reference, difference] | [[[0.01562, 0.01536, 0.01607, 0.01597, … (63 total)], … (63 total)], … | [1.01, 1.01, 1.01] | 2.46e+06 | 20.07 | 19.62 | 0.1505 | 1.172 | 19.69 | 0.2534 | 0.3195 | 19.37 | 3.737 | 0.527 | 0.09285 | 0.06265 | 2.08 | 0.979 | 468.5 | 1.341 | 19.48 | 0.2668 | 19.36 | 18.51 | 17.92 | 17.7 | 0.04042 | 2.737 | 2.459e+06 | 10.01 | 17.24 | 16.57 | 16.24 | 16.09 | 0.9923 | 12.25 | 20.73 | 20.13 | 19.93 | 19.83 | 0.766 | 13.17 | 2.458e+06 | 9.074 | 12.85 | 26.38 | 3.614e-06 | 0.02667 | 0.08524 | 6.388e-06 | 2.738 | -999 | 19.5 | -999 | 30 | 1 | 0.9969 | 0.0001698 | 8.935e-08 | 0.03556 | 8.846e-05 | 0.9999 | 18.36 | 20.36 | 18.36 | 20.36 | 53.82 | 41.92 | 11.9 | 0.5351 | 78.02 | 1 | 2 | 1 | 854 | 4 | 0 | 46 | 1494 | 8 | 1448 | 9 | 239 | True | True | False | False | ZTF21acdjasw | trues | train | 1776246164415015001 |
| Minimum value | 143192435166087 | g | difference | N/A | 1.0099999904632568 | 2458208.0 | 14.993193626403809 | 11.828742980957031 | 0.003804703475907445 | 0.061839427798986435 | 11.862600326538086 | 0.0010999999940395355 | 0.0005188093637116253 | 11.85200023651123 | 0.05999999865889549 | -0.7940000295639038 | -148.0614013671875 | -0.6691054701805115 | -0.9399999976158142 | -0.0 | 10.00100040435791 | -999.0 | 11.839099884033203 | 0.0010999999940395355 | -999.0 | -999.0 | -999.0 | -999.0 | -0.0 | 0.00033156777499243617 | 2458042.0 | 5.000020980834961 | -999.0 | -999.0 | -999.0 | -999.0 | -999.0 | -999.0 | -999.0 | -999.0 | -999.0 | -999.0 | -999.0 | -999.0 | 2458154.5 | -236.6349639892578 | -2.804577350616455 | 21.37965202331543 | 7.099999947968172e-07 | 0.012311999686062336 | -1.7358529567718506 | 1.4523000118060736e-06 | -999.0 | -999.0 | -999.0 | -999.0 | 30.0 | -999.0 | -0.0 | -0.0 | -0.0 | -0.0 | 2.2476720598673186e-14 | 6.094935223188713e-09 | 10.285042762756348 | 12.511996269226074 | 10.285042762756348 | 12.511996269226074 | -0.0 | -0.0 | -0.0 | 0.02237 | -30.3120473 | 0 | 1 | 1 | 202 | 0 | 0 | 1 | 1 | 1 | -62 | 1 | 0 | True | False | False | False | ZTF17aaaamwo | dims | test | 453441342515015017 |
| Maximum value | 3458697867235106154 | r | science | N/A | 1.0099999904632568 | 2460172.75 | 21.433073043823242 | 21.104284286499023 | 0.21714617311954498 | 9912.720703125 | 21.708900451660156 | 1.0729000568389893 | 26.693052291870117 | 23.976999282836914 | 13.935999870300293 | 1.4600000381469727 | 119.668701171875 | 0.9848169088363647 | 7.75 | 1.0 | 1535.1785888671875 | 11.868691444396973 | 21.631799697875977 | 1.669700026512146 | 27.165000915527344 | 27.964000701904297 | 26.252599716186523 | 22.355899810791016 | 1.0 | 29.914194107055664 | 2460166.75 | 536.3513793945312 | 27.81800079345703 | 24.626800537109375 | 23.552799224853516 | 22.370399475097656 | 1.0 | 29.998464584350586 | 27.92300033569336 | 24.05900001525879 | 24.337200164794922 | 23.570499420166016 | 1.0 | 29.999650955200195 | 2459138.75 | 7598.24658203125 | 14282.5029296875 | 27.262657165527344 | 0.6577643752098083 | 0.857014000415802 | 2.0040109157562256 | 2.592698097229004 | 89.99986267089844 | 89.99980926513672 | 21.386119842529297 | 13.999776840209961 | 30.0 | 1.0 | 1.0 | 0.9999991655349731 | 0.9999970197677612 | 0.9995384812355042 | 1.0 | 1.0 | 20.396743774414062 | 22.171342849731445 | 21.009519577026367 | 21.818437576293945 | 2128.044677734375 | 1942.9764404296875 | 2126.070068359375 | 359.9805578 | 87.9603521 | 1 | 2 | 1 | 1877 | 13 | 4 | 4314 | 10393 | 429 | 10308 | 2867 | 3071 | True | True | True | True | ZTF23aawwabr | vars | val | 2418290236115015016 |
"Value count" may be different from the total number of rows for nested columns: each nested element is counted as a single value.
Crossmatch with another catalog
HATS catalogs can be efficiently crossmatched using LSDB, which leverages the HEALPix partitioning to avoid loading the full datasets into memory:
import lsdb
mmu_btsbot = lsdb.open_catalog("https://huggingface.co/datasets/UniverseTBD/mmu_btsbot")
other = lsdb.open_catalog("https://huggingface.co/datasets/<org>/<other_catalog>")
crossmatched = mmu_btsbot.crossmatch(other, radius_arcsec=1.0)
print(crossmatched)
See the LSDB documentation for more details on crossmatching and other operations.
Dataset-specific context
Original survey
This dataset comes from the Zwicky Transient Facility (ZTF), specifically the Bright Transient Survey (BTS), which scans the Northern sky every 2–3 nights to detect and study bright, nearby transient events.
Data modality
The dataset is multimodal, combining image triplets (science, reference, and difference) with tabular metadata containing extracted features of each transient candidate.
Typical use cases
It is mainly used for detecting and classifying astrophysical transients, particularly distinguishing real events from bogus detections and supporting follow-up observations. The dataset was also used to develop the BTSbot model described in the original paper.
Caveats
Each sample corresponds to an alert rather than a unique object, so the same transient may appear multiple times. Early detections are typically noisier and harder to classify, and the dataset is biased toward bright, local transients matching BTS selection criteria.
Citation
Users should cite the ZTF/BTS survey and the BTSbot paper. The dataset is released under the CC BY 4.0 license, requiring attribution to the original authors.
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