add tiny dataset and related files

GBI-16-2D.py

@@ -6,6 +6,8 @@ from huggingface_hub import hf_hub_download
 
 
 from astropy.io import fits
+from astropy.coordinates import Angle
+from astropy import units as u
 import datasets
 from datasets import DownloadManager
 from fsspec.core import url_to_fs
@@ -69,6 +71,10 @@ class GBI_16_2D(datasets.GeneratorBasedBuilder):
                     "dec": datasets.Value("float64"),
                     "pixscale": datasets.Value("float64"),
                     "image_id": datasets.Value("string"),
+                    "rotation_angle": datasets.Value("float64"),
+                    "dim_1": datasets.Value("int64"),
+                    "dim_2": datasets.Value("int64"),
+                    "exposure_time": datasets.Value("float64"),
                 }
             ),
             supervised_keys=None,
@@ -108,6 +114,10 @@ class GBI_16_2D(datasets.GeneratorBasedBuilder):
                             "dec": item["dec"],
                             "pixscale": item["pixscale"],
                             "image_id": item["image_id"],
+                            "rotation_angle": item["rotation_angle"],
+                            "dim_1": item["dim_1"],
+                            "dim_2": item["dim_2"],
+                            "exposure_time": item["exposure_time"],
                         }
                     )
                 if locally_run:
@@ -151,7 +161,7 @@ class GBI_16_2D(datasets.GeneratorBasedBuilder):
             with fits.open(filepath, memmap=False) as hdul:
                 # the first axis is length one, so we take the first element
                 # the second axis is the time axis and varies between images
-                image_data = hdul["SCI"].data[:, :].tolist()
+                image_data = hdul[0].data[:, :].tolist()
                 yield task_instance_key, {**{"image": image_data}, **item}
 
 
@@ -192,15 +202,25 @@ def make_split_jsonl_files(
                 print(file, flush=True, end="...")
                 with fits.open(file, memmap=False) as hdul:
                     image_id = os.path.basename(file).split(".fits")[0]
-                    ra = hdul["SCI"].header.get("CRVAL1", 0)
-                    dec = hdul["SCI"].header.get("CRVAL2", 0)
-                    pixscale = hdul["SCI"].header.get("CD1_2", 0.396)
+                    ras = hdul[0].header.get("RA", "0")
+                    ra = float(Angle(f'{ras} hours').to_string(unit=u.degree, decimal=True))
+                    decs = hdul[0].header.get("DEC", "0")
+                    dec = float(Angle(f'{decs} degrees').to_string(unit=u.degree, decimal=True))
+                    pixscale = hdul[0].header.get("CD1_2", 0.135)
+                    rotation = hdul[0].header.get("ROTPOSN", 0.0)
+                    dim_1 = hdul[0].header.get("NAXIS1", 0)
+                    dim_2 = hdul[0].header.get("NAXIS2", 0)
+                    exposure_time = hdul[0].header.get("TTIME", 0.0)
                     item = {
                         "image_id": image_id,
                         "image": file,
                         "ra": ra,
                         "dec": dec,
                         "pixscale": pixscale,
+                        "rotation_angle": rotation,
+                        "dim_1": dim_1,
+                        "dim_2": dim_2,
+                        "exposure_time": exposure_time,
                     }
                     out_f.write(json.dumps(item) + "\n")
 

splits/tiny_test.jsonl

@@ -0,0 +1 @@
+{"image_id": "LR.20100708.41739", "image": "./data/LR.20100708.41739.fits", "ra": 264.942, "dec": 27.3245, "pixscale": 0.135, "rotation_angle": -89.9999583, "dim_1": 0, "dim_2": 0, "exposure_time": 270}

splits/tiny_train.jsonl

@@ -0,0 +1,2 @@
+{"image_id": "LR.20090219.53662", "image": "./data/LR.20090219.53662.fits", "ra": 258.967, "dec": 55.3849, "pixscale": 0.135, "rotation_angle": 270.00076907, "dim_1": 2248, "dim_2": 2048, "exposure_time": 270}
+{"image_id": "LR.20071010.27305", "image": "./data/LR.20071010.27305.fits", "ra": 288.061, "dec": -32.4109, "pixscale": 0.135, "rotation_angle": -89.99965647, "dim_1": 600, "dim_2": 400, "exposure_time": 30}