Datasets:

juliensimon
/

tno-centaur-properties

asteroid_number float64 0 509k	asteroid_name stringclasses 46 values	provisional_designation stringlengths 1 10	semimajor_axis_au float64 7.9 1.64k	eccentricity float64 0 0.99	inclination_deg float64 0 144	dynamical_type stringclasses 15 values	number_of_companions float64 0 5	absolute_magnitude_mpc float64 -1.1 14.4 ⌀	absolute_magnitude float64 -1.16 14.4 ⌀	absolute_magnitude_uncertainty float64 0.01 0.83 ⌀	effective_diameter_km float64 8.6 3.26k ⌀	effective_diameter_error_upper_km float64 0.6 647 ⌀	effective_diameter_error_lower_km float64 0.6 467 ⌀	effective_diameter_code stringclasses 5 values	primary_diameter_km float64 25 3.26k ⌀	primary_diameter_error_upper_km float64 0.4 740 ⌀	primary_diameter_error_lower_km float64 0.4 740 ⌀	primary_diameter_code stringclasses 5 values	secondary_diameter_km float64 10 1.5k ⌀	secondary_diameter_error_upper_km float64 1 170 ⌀	secondary_diameter_error_lower_km float64 1 125 ⌀	secondary_diameter_code stringclasses 14 values	albedo float64 -10 0.96	albedo_error_upper float64 -10 0.85	albedo_error_lower float64 -10 0.35	albedo_color stringclasses 5 values	albedo_code stringclasses 17 values	density_g_cm3 float64 -10 4.2	density_error_upper_g_cm3 float64 -10 2.6	density_error_lower_g_cm3 float64 -10 1.7	density_code stringclasses 13 values	method_diameter_albedo stringclasses 15 values	method_density stringclasses 4 values	reference_code stringlengths 4 4	perihelion_au float64 4.16 77.2	aphelion_au float64 8.85 3.25k
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	6.9	0.02	180	40	50	-	null	null	null	-	null	null	null	-	0.1	0.09	0.035	*	-	-9.999	-9.999	-9.999	-	T	-	L84a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	null	null	372	null	null	L	null	null	null	-	null	null	null	-	0.027	-9.999	-9.999	-	G	-9.999	-9.999	-9.999	-	T	-	S91a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	6.8	null	300	null	null	L	null	null	null	-	null	null	null	-	0.04	-9.999	-9.999	*	G	-9.999	-9.999	-9.999	-	T	-	J92a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	null	null	166	null	null	L	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	-9.999	-9.999	-9.999	-	O	-	B93a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	6.9	null	180.4	21.7	21.7	D	null	null	null	-	null	null	null	-	0.14	0.06	0.03	*	-	-9.999	-9.999	-9.999	-	T	-	C94a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	null	null	168	20	20	-	null	null	null	-	null	null	null	-	0.13	0.04	0.03	V	-	-9.999	-9.999	-9.999	-	T	-	A95a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	null	null	179.2	13.6	13.6	-	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	-9.999	-9.999	-9.999	-	O	-	B96a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	null	null	180.4	13	13	G	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	-9.999	-9.999	-9.999	-	O	-	B96a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	null	null	160	20	20	-	null	null	null	-	null	null	null	-	0.14	0.02	0.02	*	-	-9.999	-9.999	-9.999	-	T	-	G00a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	6.85	0.03	148	8	8	-	null	null	null	-	null	null	null	-	0.17	0.02	0.02	*	-	-9.999	-9.999	-9.999	-	T	-	F02a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	7.28	0.08	142	10	10	-	null	null	null	-	null	null	null	-	0.11	0.02	0.02	*	-	-9.999	-9.999	-9.999	-	T	-	G04a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	6.58	null	233.3	14.7	14.4	-	null	null	null	-	null	null	null	-	0.076	0.01	0.009	V	-	-9.999	-9.999	-9.999	-	T	-	S08a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	6.2	null	250	34	39	-	null	null	null	-	null	null	null	-	0.07	0.02	0.02	-	-	-9.999	-9.999	-9.999	-	T	-	S12e	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	6.5	null	201.2	62.4	62.4	-	null	null	null	-	null	null	null	-	0.11	0.052	0.052	-	-	-9.999	-9.999	-9.999	-	T	-	B13b	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	5.92	0.2	218	20	20	-	null	null	null	-	null	null	null	-	0.16	0.03	0.03	V	-	-9.999	-9.999	-9.999	-	T	-	F13b	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	6.5	null	234	null	null	-	null	null	null	-	null	null	null	-	0.08	0.056	0.029	V	-	-9.999	-9.999	-9.999	-	T	-	M13a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	null	null	158	14	14	G	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	-9.999	-9.999	-9.999	-	O	-	R15a	8.494	18.906
2,060	Chiron	1977 UB	13.7	0.38	7	CEN	0	5.8	5.92	0.2	210	11	14	-	null	null	null	-	null	null	null	-	0.172	0.043	0.036	-	-	-9.999	-9.999	-9.999	-	T	-	L17a	8.494	18.906
5,145	Pholus	1992 AD	20.4	0.57	25	CEN	0	7.1	null	null	189	26	26	G	null	null	null	-	null	null	null	-	0.044	0.013	0.013	V	L	-9.999	-9.999	-9.999	-	T	-	D93a	8.772	32.028
5,145	Pholus	1992 AD	20.4	0.57	25	CEN	0	7.1	null	null	185	16	16	-	null	null	null	-	null	null	null	-	0.043	0.03	0.03	V	D	-9.999	-9.999	-9.999	-	T	-	D96a	8.772	32.028
5,145	Pholus	1992 AD	20.4	0.57	25	CEN	0	7.1	null	null	null	null	null	-	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	0.5	-9.999	-9.999	-	-	H	T05a	8.772	32.028
5,145	Pholus	1992 AD	20.4	0.57	25	CEN	0	7.1	7.63	null	140	40	40	-	null	null	null	-	null	null	null	-	0.08	0.07	0.03	V	-	-9.999	-9.999	-9.999	-	T	-	S08a	8.772	32.028
5,145	Pholus	1992 AD	20.4	0.57	25	CEN	0	7.1	7.68	0.28	107	18	19	-	null	null	null	-	null	null	null	-	0.126	0.076	0.049	V	-	-9.999	-9.999	-9.999	-	T	-	D13a	8.772	32.028
5,145	Pholus	1992 AD	20.4	0.57	25	CEN	0	7.1	7	null	127	null	null	-	null	null	null	-	null	null	null	-	0.174	0.303	0.093	V	-	-9.999	-9.999	-9.999	-	T	-	M13a	8.772	32.028
7,066	Nessus	1993 HA2	24.6	0.52	16	CEN	0	9.6	9.7	null	60	16	16	-	null	null	null	-	null	null	null	-	0.065	0.053	0.025	V	-	-9.999	-9.999	-9.999	-	T	-	S08a	11.808	37.392
7,066	Nessus	1993 HA2	24.6	0.52	16	CEN	0	9.6	9.51	0.22	57	17	14	-	null	null	null	-	null	null	null	-	0.086	0.075	0.034	V	-	-9.999	-9.999	-9.999	-	T*	-	D13a	11.808	37.392
7,066	Nessus	1993 HA2	24.6	0.52	16	CEN	0	9.6	9.6	null	57	null	null	-	null	null	null	-	null	null	null	-	0.079	0.092	0.039	V	-	-9.999	-9.999	-9.999	-	T	-	M13a	11.808	37.392
8,405	Asbolus	1995 GO	18	0.62	18	CEN	0	9.1	null	null	66	4	4	-	null	null	null	-	null	null	null	-	0.12	0.03	0.03	*	-	-9.999	-9.999	-9.999	-	T	-	F02a	6.84	29.16
8,405	Asbolus	1995 GO	18	0.62	18	CEN	0	9.1	null	null	77.5	7.5	7.5	-	null	null	null	-	null	null	null	-	0.095	0.015	0.015	V	-	-9.999	-9.999	-9.999	-	T	-	S05a	6.84	29.16
8,405	Asbolus	1995 GO	18	0.62	18	CEN	0	9.1	9.15	null	84.2	7.8	7.8	-	null	null	null	-	null	null	null	-	0.055	0.013	0.009	V	-	-9.999	-9.999	-9.999	-	T	-	S08a	6.84	29.16
8,405	Asbolus	1995 GO	18	0.62	18	CEN	0	9.1	9.13	0.25	85	8	9	-	null	null	null	-	null	null	null	-	0.056	0.019	0.015	V	-	-9.999	-9.999	-9.999	-	T	-	D13a	6.84	29.16
8,405	Asbolus	1995 GO	18	0.62	18	CEN	0	9.1	9	null	86	null	null	-	null	null	null	-	null	null	null	-	0.06	0.04	0.023	V	-	-9.999	-9.999	-9.999	-	T	-	M13a	6.84	29.16
8,405	Asbolus	1995 GO	18	0.62	18	CEN	0	9.1	null	null	20	null	null	G	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	-9.999	-9.999	-9.999	-	O	-	B14a	6.84	29.16
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	null	null	302	30	30	-	null	null	null	-	null	null	null	-	0.045	0.01	0.01	*	-	-9.999	-9.999	-9.999	-	T	-	J98a	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	null	null	273	19	19	-	null	null	null	-	null	null	null	-	0.055	0.008	0.008	*	-	-9.999	-9.999	-9.999	-	T	-	A01a	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	6.7	0.2	236	12	12	-	null	null	null	-	null	null	null	-	0.07	0.01	0.01	*	-	-9.999	-9.999	-9.999	-	T	-	G04a	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	null	null	225	25	25	-	null	null	null	-	null	null	null	-	0.1	0.02	0.02	V	-	-9.999	-9.999	-9.999	-	T	-	S05a	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	6.66	null	258.6	10.3	10.3	-	null	null	null	-	null	null	null	-	0.057	0.005	0.004	V	-	-9.999	-9.999	-9.999	-	T	-	S08a	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	6.6	null	219	30	34	-	null	null	null	-	null	null	null	-	0.08	0.03	0.02	-	-	-9.999	-9.999	-9.999	-	T	-	S12e	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	6.66	null	226.1	29.3	29.3	-	null	null	null	-	null	null	null	-	0.075	0.015	0.015	-	-	-9.999	-9.999	-9.999	-	T	-	B13b	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	7.4	0.25	248	18	18	-	null	null	null	-	null	null	null	-	0.035	0.01	0.01	V	-	-9.999	-9.999	-9.999	-	T	-	F13b	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	6.4	null	263	null	null	-	null	null	null	-	null	null	null	-	0.071	0.044	0.028	V	-	-9.999	-9.999	-9.999	-	T	-	M13a	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	null	null	254	8	8	-	null	null	null	-	null	null	null	-	0.031	0.005	0.005	-	-	-9.999	-9.999	-9.999	-	O	-	B14a	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	null	null	254	8	8	-	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	-9.999	-9.999	-9.999	-	O	-	B14b	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	7.4	0.25	240.6	null	null	D	null	null	null	-	null	null	null	-	0.036	0.01	0.01	-	-	0.75	-9.999	-9.999	-	O	H	D14a	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	7.2	0.1	238	10	10	-	null	null	null	-	null	null	null	-	0.042	0.01	0.01	-	-	-9.999	-9.999	-9.999	-	T	-	F14a	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	null	null	242	2	2	-	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	-9.999	-9.999	-9.999	-	O	-	S14a	13.114	18.486
10,199	Chariklo	1997 CU26	15.8	0.17	23	CEN	0	6.6	7.3	0.2	241	9	8	-	null	null	null	-	null	null	null	-	0.037	0.009	0.008	-	-	-9.999	-9.999	-9.999	-	T	-	L17a	13.114	18.486
10,370	Hylonome	1995 DW2	25.2	0.25	4	CEN	0	8.6	9.41	null	70	20	20	-	null	null	null	-	null	null	null	-	0.062	0.05	0.03	V	-	-9.999	-9.999	-9.999	-	T	-	S08a	18.9	31.5
10,370	Hylonome	1995 DW2	25.2	0.25	4	CEN	0	8.6	9.51	0.08	77	15	15	-	null	null	null	-	null	null	null	-	0.048	0.027	0.014	V	-	-9.999	-9.999	-9.999	-	T	-	D13a	18.9	31.5
10,370	Hylonome	1995 DW2	25.2	0.25	4	CEN	0	8.6	8	null	88	null	null	-	null	null	null	-	null	null	null	-	0.144	0.378	0.069	V	-	-9.999	-9.999	-9.999	-	T	-	M13a	18.9	31.5
15,789	-	1993 SC	39.4	0.19	5	PLU	0	7	null	null	328	58	66	-	null	null	null	-	null	null	null	-	0.022	0.013	0.006	*	-	-9.999	-9.999	-9.999	-	T	-	T00a	31.914	46.886
15,789	-	1993 SC	39.4	0.19	5	PLU	0	7	null	null	398	108	171	-	null	null	null	-	null	null	null	-	0.035	0.016	0.013	R	-	-9.999	-9.999	-9.999	-	T*	-	G05a	31.914	46.886
15,789	-	1993 SC	39.4	0.19	5	PLU	0	7	null	null	398	110	171	-	null	null	null	-	null	null	null	-	0.035	0.016	0.013	V	-	-9.999	-9.999	-9.999	-	T	-	C06a	31.914	46.886
15,820	-	1994 TB	39.2	0.31	12	PLU	0	7.3	8	null	451.3	176.1	145.4	L	null	null	null	-	null	null	null	-	0.006	0.006	0.003	V	G	-9.999	-9.999	-9.999	-	T	-	S08a	27.048	51.352
15,820	-	1994 TB	39.2	0.31	12	PLU	0	7.3	7.934	0.354	85	36	28	-	null	null	null	-	null	null	null	-	0.172	0.258	0.097	-	-	-9.999	-9.999	-9.999	-	T	-	L13b	27.048	51.352
15,820	-	1994 TB	39.2	0.31	12	PLU	0	7.3	7.1	null	91	null	null	-	null	null	null	-	null	null	null	-	0.31	0.243	0.16	V	-	-9.999	-9.999	-9.999	-	T	-	M13a	27.048	51.352
15,874	-	1996 TL66	82.6	0.58	24	SDO	0	5.3	null	null	632	84	98	-	null	null	null	-	null	null	null	-	0.03	0.012	0.007	*	-	-9.999	-9.999	-9.999	-	T	-	T00a	34.692	130.508
15,874	-	1996 TL66	82.6	0.58	24	SDO	0	5.3	null	null	958	null	null	L	null	null	null	-	null	null	null	-	0.018	-9.999	-9.999	R	G	-9.999	-9.999	-9.999	-	T*	-	G05a	34.692	130.508
15,874	-	1996 TL66	82.6	0.58	24	SDO	0	5.3	null	null	958	null	null	L	null	null	null	-	null	null	null	-	0.018	-9.999	-9.999	V	G	-9.999	-9.999	-9.999	-	T	-	C06a	34.692	130.508
15,874	-	1996 TL66	82.6	0.58	24	SDO	0	5.3	5.46	null	575	116	115	-	null	null	null	-	null	null	null	-	0.035	0.02	0.011	V	-	-9.999	-9.999	-9.999	-	T	-	S08a	34.692	130.508
15,874	-	1996 TL66	82.6	0.58	24	SDO	0	5.3	5.39	0.12	339	20	20	-	null	null	null	-	null	null	null	-	0.11	0.021	0.015	V	-	-9.999	-9.999	-9.999	-	T	-	S12a	34.692	130.508
15,875	-	1996 TP66	39.2	0.33	6	PLU	0	7	null	null	350	50	50	-	null	null	null	-	null	null	null	-	0.03	0.01	0.01	V	-	-9.999	-9.999	-9.999	-	T	-	S05a	26.264	52.136
15,875	-	1996 TP66	39.2	0.33	6	PLU	0	7	7.42	null	160	45	45	-	null	null	null	-	null	null	null	-	0.074	0.07	0.03	V	-	-9.999	-9.999	-9.999	-	T	-	S08a	26.264	52.136
15,875	-	1996 TP66	39.2	0.33	6	PLU	0	7	7.51	0.09	154	28.8	33.7	-	null	null	null	-	null	null	null	-	0.074	0.063	0.031	V	-	-9.999	-9.999	-9.999	-	T	-	M12a	26.264	52.136
19,308	-	1996 TO66	43.2	0.12	27	HAU	0	4.8	4.5	null	897	null	null	L	null	null	null	-	null	null	null	-	0.04	-9.999	-9.999	*	G	-9.999	-9.999	-9.999	-	T	-	A04a	38.016	48.384
19,308	-	1996 TO66	43.2	0.12	27	HAU	0	4.8	null	null	902	null	null	L	null	null	null	-	null	null	null	-	0.033	-9.999	-9.999	R	G	-9.999	-9.999	-9.999	-	T*	-	G05a	38.016	48.384
19,308	-	1996 TO66	43.2	0.12	27	HAU	0	4.8	4.5	null	409	null	null	-	null	null	null	-	null	null	null	-	0.168	0.221	0.082	V	-	-9.999	-9.999	-9.999	-	T	-	M13a	38.016	48.384
19,521	Chaos	1998 WH24	45.5	0.1	12	CUB	0	4.8	4.9	null	742	null	null	L	null	null	null	-	null	null	null	-	0.04	-9.999	-9.999	*	G	-9.999	-9.999	-9.999	-	T	-	A04a	40.95	50.05
19,521	Chaos	1998 WH24	45.5	0.1	12	CUB	0	4.8	null	null	747	null	null	L	null	null	null	-	null	null	null	-	0.058	-9.999	-9.999	R	G	-9.999	-9.999	-9.999	-	T*	-	G05a	40.95	50.05
19,521	Chaos	1998 WH24	45.5	0.1	12	CUB	0	4.8	5	0.06	600	140	130	-	null	null	null	-	null	null	null	-	0.05	0.03	0.016	V	-	-9.999	-9.999	-9.999	-	T	-	V12a	40.95	50.05
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	null	null	900	129	145	-	null	null	null	-	null	null	null	-	0.07	0.03	0.017	R	-	-9.999	-9.999	-9.999	-	T	-	J01a	40.755	45.045
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	null	null	null	null	null	-	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	1.05	-9.999	-9.999	G	-	H	J02a	40.755	45.045
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	null	null	1,060	180	220	-	null	null	null	-	null	null	null	-	0.038	0.022	0.01	V	-	-9.999	-9.999	-9.999	-	T	-	L02a	40.755	45.045
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	null	null	936	238	324	-	null	null	null	-	null	null	null	-	0.037	0.011	0.014	R	-	-9.999	-9.999	-9.999	-	T*	-	G05a	40.755	45.045
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	null	null	600	150	150	-	null	null	null	-	null	null	null	-	0.21	0.09	0.09	V	-	-9.999	-9.999	-9.999	-	T	-	S05a	40.755	45.045
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	3.94	null	586	190	129	-	null	null	null	-	null	null	null	-	0.14	0.09	0.06	V	-	-9.999	-9.999	-9.999	-	T	-	C06a	40.755	45.045
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	null	null	null	null	null	-	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	0.992	0.086	0.015	-	-	H	L07a	40.755	45.045
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	3.99	null	500	100	100	-	null	null	null	-	null	null	null	-	0.16	0.1	0.08	V	-	-9.999	-9.999	-9.999	-	T	-	S08a	40.755	45.045
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	null	null	714	178	128	-	null	null	null	-	null	null	null	-	0.088	0.042	0.031	V	-	-9.999	-9.999	-9.999	-	T*	-	B09a	40.755	45.045
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	3.76	0.035	668	154	86	-	null	null	null	-	null	null	null	-	0.127	0.04	0.042	-	-	-9.999	-9.999	-9.999	-	T	-	L13b	40.755	45.045
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	3.7	null	816	null	null	-	null	null	null	-	null	null	null	-	0.088	0.089	0.049	V	-	-9.999	-9.999	-9.999	-	T	-	M13a	40.755	45.045
20,000	Varuna	2000 WR106	42.9	0.05	17	TNO	0	3.7	null	null	678	null	null	-	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	-9.999	-9.999	-9.999	-	O	-	B14a	40.755	45.045
24,835	-	1995 SM55	41.6	0.1	27	HAU	0	4.6	4.8	null	701	null	null	L	null	null	null	-	null	null	null	-	0.04	-9.999	-9.999	*	G	-9.999	-9.999	-9.999	-	T	-	A04a	37.44	45.76
24,835	-	1995 SM55	41.6	0.1	27	HAU	0	4.6	null	null	704	null	null	L	null	null	null	-	null	null	null	-	0.067	-9.999	-9.999	R	G	-9.999	-9.999	-9.999	-	T*	-	G05a	37.44	45.76
24,835	-	1995 SM55	41.6	0.1	27	HAU	0	4.6	null	null	null	null	null	-	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	0.6	-9.999	-9.999	G	-	H	T16a	37.44	45.76
26,181	-	1996 GQ21	95.1	0.6	13	SDO	0	4.9	5.2	null	262	null	null	-	null	null	null	-	null	null	null	-	0.214	0.291	0.102	V	-	-9.999	-9.999	-9.999	-	T	-	M13a	38.04	152.16
26,308	-	1998 SM165	47.4	0.37	14	1:2	1	5.7	null	null	244.4	null	null	D	232	null	null	-	77	null	null	D	0.15	-9.999	-9.999	*	-	1	-9.999	-9.999	A	Y	-	M04a	29.862	64.938
26,308	-	1998 SM165	47.4	0.37	14	1:2	1	5.7	null	null	null	null	null	-	238	54	54	-	null	null	null	-	0.14	0.06	0.06	R	-	1	1	0.5	A	Y*	-	G05a	29.862	64.938
26,308	-	1998 SM165	47.4	0.37	14	1:2	1	5.7	6.13	null	302.6	null	null	D	287	36	36	-	96	12	12	-	0.07	0.02	0.02	V	-	0.51	0.29	0.14	-	T	Y	S06b	29.862	64.938
26,308	-	1998 SM165	47.4	0.37	14	1:2	1	5.7	6.38	null	279.8	29.7	28.6	-	null	null	null	-	null	null	null	-	0.063	0.015	0.012	V	-	-9.999	-9.999	-9.999	-	T	-	S08a	29.862	64.938
26,308	-	1998 SM165	47.4	0.37	14	1:2	1	5.7	null	null	238.4	null	null	D	229	51	51	-	66.3	null	null	D	0.105	0.045	0.045	V	-	1	1	0.5	A	Y*	-	G11a	29.862	64.938
26,308	-	1998 SM165	47.4	0.37	14	1:2	1	5.7	6.023	0.075	291	22	26	-	null	null	null	-	null	null	null	-	0.083	0.018	0.013	-	-	-9.999	-9.999	-9.999	-	T	-	L13b	29.862	64.938
26,308	-	1998 SM165	47.4	0.37	14	1:2	1	5.7	null	null	null	null	null	-	null	null	null	-	null	null	null	-	-9.999	-9.999	-9.999	-	-	0.59	0.16	0.14	-	-	Y	K17a	29.862	64.938
26,375	-	1999 DE9	55.8	0.42	8	2:5	0	4.9	5.21	null	461	46.1	45.3	-	null	null	null	-	null	null	null	-	0.069	0.016	0.012	V	-	-9.999	-9.999	-9.999	-	T	-	S08a	32.364	79.236
26,375	-	1999 DE9	55.8	0.42	8	2:5	0	4.9	4.7	null	444	null	null	-	null	null	null	-	null	null	null	-	0.118	0.096	0.048	V	-	-9.999	-9.999	-9.999	-	T	-	M13a	32.364	79.236
28,978	Ixion	2001 KX76	39.7	0.24	20	PLU	0	3.6	3.2	null	804	null	null	L	null	null	null	-	null	null	null	-	0.15	-9.999	-9.999	*	G	-9.999	-9.999	-9.999	-	T	-	A04a	30.172	49.228
28,978	Ixion	2001 KX76	39.7	0.24	20	PLU	0	3.6	null	null	822	null	null	L	null	null	null	-	null	null	null	-	0.148	-9.999	-9.999	R	G	-9.999	-9.999	-9.999	-	T*	-	G05a	30.172	49.228
28,978	Ixion	2001 KX76	39.7	0.24	20	PLU	0	3.6	null	null	475	75	75	-	null	null	null	-	null	null	null	-	0.375	0.125	0.125	V	-	-9.999	-9.999	-9.999	-	T	-	S05a	30.172	49.228
28,978	Ixion	2001 KX76	39.7	0.24	20	PLU	0	3.6	4.04	null	480	152	136	-	null	null	null	-	null	null	null	-	0.19	0.18	0.08	V	-	-9.999	-9.999	-9.999	-	T	-	C06a	30.172	49.228

End of preview. Expand in Data Studio

TNO/Centaur Physical Properties (PDS)

Rosetta spacecraft approaching Comet 67P/Churyumov-Gerasimenko

Credit: NASA/ESA

Part of the Asteroids & Small Bodies Datasets collection on Hugging Face.

A compilation of 652 physical property measurements for Trans-Neptunian Objects (TNOs) and Centaurs from the PDS Small Bodies Node. Includes diameters, geometric albedos, and bulk densities with uncertainties, cross-referenced with orbital elements and dynamical classifications.

Dataset description

Trans-Neptunian Objects (TNOs) inhabit the outer reaches of the solar system beyond Neptune's orbit (a > 30 AU). They are remnants of the primordial planetesimal disk, preserved in cold storage for 4.5 billion years, and represent the least-processed material in the solar system. Centaurs are dynamically unstable objects on orbits that cross the giant planets, thought to be TNOs in transition toward the inner solar system.

Physical characterization of these distant objects is exceptionally challenging. Diameters and albedos are measured via thermal emission (Spitzer, Herschel), stellar occultations, or resolved imaging (HST, adaptive optics). Density measurements require binary or multiple systems where masses can be determined from mutual orbits. This dataset compiles measurements from multiple techniques and references, with some objects having multiple independent measurements.

The dynamical classification reveals the structure of the trans-Neptunian region: classical Kuiper Belt objects (cubewanos), resonant populations (plutinos in 3:2, twotinos in 2:1), scattered disk objects, and detached/extreme objects like Sedna.

Dynamical types

Type	Measurements
CEN	183
PLU	119
TNO	103
CUB	99
SAT	48
SDO	38
HAU	30
1:2	12
2:5	7
3:10	3
3:8	2
3:5	2
4:7	2
2:7	2
NL4	2

Quick stats

652 total measurements (~194 unique objects)
493 with measured effective diameter
652 with geometric albedo
652 with bulk density
Largest object: 3263 km diameter

Usage

from datasets import load_dataset

ds = load_dataset("juliensimon/tno-centaur-properties", split="train")
df = ds.to_pandas()

# Diameter vs albedo
import matplotlib.pyplot as plt
valid = df.dropna(subset=["effective_diameter_km", "albedo"])
plt.scatter(valid["effective_diameter_km"], valid["albedo"], alpha=0.5, s=15)
plt.xscale("log")
plt.xlabel("Effective Diameter (km)")
plt.ylabel("Geometric Albedo")
plt.title("TNO/Centaur Size vs Albedo")
plt.show()

# Orbital distribution
plt.scatter(df["semimajor_axis_au"], df["eccentricity"],
            c=df["inclination_deg"], cmap="viridis", alpha=0.5, s=10)
plt.colorbar(label="Inclination (deg)")
plt.xlabel("Semimajor Axis (AU)")
plt.ylabel("Eccentricity")
plt.title("TNO/Centaur Orbital Elements")
plt.show()

# Objects with density measurements
dense = df[df["density_g_cm3"].notna()].drop_duplicates("provisional_designation")
print(f"Objects with density: {len(dense)}")
print(dense[["asteroid_name", "density_g_cm3", "effective_diameter_km"]].to_string())

Data source

PDS Small Bodies Node, TNO-Centaur Diameter/Albedo/Density compilation (V1.0): sbnarchive.psi.edu

Related datasets

JPL Small Body Database — 1.4M+ asteroid/comet orbital elements
Nesvorny Asteroid Families — 171K asteroid family members
NEOWISE — Near-Earth object diameters and albedos
Comets (MPC) — Minor Planet Center comet catalog

Pipeline

Source code: juliensimon/space-datasets

Support

If you find this dataset useful, please give it a ❤️ on the dataset page and share feedback in the Community tab! Also consider giving a ⭐ to the space-datasets repo.

Citation

@dataset{tno_centaur_properties,
  author = {Simon, Julien},
  title = {TNO/Centaur Physical Properties (PDS)},
  year = {2026},
  publisher = {Hugging Face},
  url = {https://huggingface.co/datasets/juliensimon/tno-centaur-properties},
  note = {Based on PDS Small Bodies Node TNO-Centaur compilation}
}