1866 Sisyphus — IAA Minor Planet Database

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.5381207270 ± 5.42e-09
Semi-major axis (a)	1.8933719410 AU ± 4.50e-10
Inclination (i)	41.20633494° ± 7.87e-07
Long. of Asc. Node (Ω)	63.44668864° ± 1.04e-06
Arg. of Perihelion (ω)	293.09862767° ± 1.07e-06
Mean Anomaly (M)	140.66424737° ± 8.67e-07
Mean Motion (n)	0.3783191899°/day ± 1.35e-10
Perihelion dist (q)	0.87450926 AU ± 1.03e-08
Aphelion dist (Q)	2.91223463 AU ± 1.03e-08
Orbital Period	2.60527700 yr ± 9.28e-10

Physical Parameters

H (abs. magnitude)	12.48
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-05-31
RMS Residual	0.220″
Uncertainty	0
Orbit Type	Apollo
MOID	0.102869 AU
Observations Used	9210
Radar Obs Used	1
Gaia Obs Used	79
Oppositions	38
Arc Total	1955-2026
First Observation Used	1955-01-26
Last Observation Used	2026-04-06

Observations (11960)

Date	Type	RA	Dec	Mag	Band	Observatory
2019-07-07 03:44:30	S	07 01 54.866	-63 30 14.18	–	V	C57
2019-07-07 03:44:30	s	1 +104202.28	6 +308255.71	9280.0	–	C57
2019-07-07 04:14:30	S	07 01 55.510	-63 28 59.12	–	V	C57
2019-07-07 04:14:30	s	1 +103332.72	1 +309606.64	4620.0	–	C57
2019-07-07 04:44:30	S	07 01 55.956	-63 27 41.44	–	V	C57
2019-07-07 04:44:30	s	1 +102459.54	3 +310946.67	7970.0	–	C57
2019-07-07 05:14:30	S	07 01 56.323	-63 26 30.34	–	V	C57
2019-07-07 05:14:30	s	1 +101582.81	3 +312275.86	9590.0	–	C57
2019-07-07 05:44:30	S	07 01 57.010	-63 25 11.96	–	V	C57
2019-07-07 05:44:30	s	1 +100702.59	3 +313594.25	9750.0	–	C57
2019-07-07 06:14:30	S	07 01 57.379	-63 23 59.82	–	V	C57
2019-07-07 06:14:30	s	1 +99818.941	0 +314901.88	8690.0	–	C57
2019-07-07 06:44:30	S	07 01 57.823	-63 22 44.62	–	V	C57
2019-07-07 06:44:30	s	1 +98931.917	0 +316198.80	6680.0	–	C57
2019-07-07 07:14:30	S	07 01 58.426	-63 21 27.43	–	V	C57
2019-07-07 07:14:30	s	1 +98041.579	0 +317485.06	3960.0	–	C57
2019-07-07 07:44:30	S	07 01 58.750	-63 20 17.02	–	V	C57
2019-07-07 07:44:30	s	1 +97147.983	0 +318760.69	770.0	–	C57
2019-07-07 08:14:30	S	07 01 59.352	-63 18 58.50	–	V	C57
2019-07-07 08:14:30	s	1 +96251.187	0 +320025.74	7360.0	–	C57
2019-07-07 08:44:30	S	07 01 59.796	-63 17 46.90	–	V	C57
2019-07-07 08:44:30	s	1 +95351.245	0 +321280.24	3970.0	–	C57
2019-07-07 09:14:30	S	07 02 00.156	-63 16 30.43	–	V	C57
2019-07-07 09:14:30	s	1 +94448.212	0 +322524.26	820.0	–	C57
2019-07-07 09:44:30	S	07 02 00.766	-63 15 15.26	–	V	C57
2019-07-07 09:44:30	s	1 +93542.141	0 +323757.81	8160.0	–	C57
2019-07-07 10:14:30	S	07 02 01.171	-63 14 02.76	–	V	C57
2019-07-07 10:14:30	s	1 +92633.087	0 +324980.96	6210.0	–	C57
2019-07-07 10:44:30	S	07 02 01.558	-63 12 46.33	–	V	C57
2019-07-07 10:44:30	s	1 +91721.101	0 +326193.72	5190.0	–	C57
2019-07-07 11:14:30	S	07 02 02.148	-63 11 33.68	–	V	C57
2019-07-07 11:14:30	s	1 +90806.234	0 +327396.16	5330.0	–	C57
2019-07-07 11:44:30	S	07 02 02.496	-63 10 16.25	–	V	C57
2019-07-07 11:44:30	s	1 +89888.538	0 +328588.30	6850.0	–	C57
2019-07-07 12:14:30	S	07 02 02.914	-63 09 02.70	–	V	C57
2019-07-07 12:14:30	s	1 +88968.063	0 +329770.18	9960.0	–	C57
2019-07-07 12:44:30	S	07 02 03.468	-63 07 47.93	–	V	C57
2019-07-07 12:44:30	s	1 +88044.857	0 +330941.85	4880.0	–	C57
2019-07-07 13:44:30	S	07 02 04.262	-63 05 20.54	–	V	C57
2019-07-07 13:44:30	s	1 +86190.452	0 +333254.69	980.0	–	C57
2019-07-07 14:14:30	S	07 02 04.762	-63 04 01.81	–	V	C57
2019-07-07 14:14:30	s	1 +85259.347	0 +334395.94	2580.0	–	C57
2019-07-07 14:44:30	S	07 02 05.083	-63 02 50.93	–	V	C57
2019-07-07 14:44:30	s	1 +84325.703	0 +335527.13	6810.0	–	C57
2019-07-07 15:14:30	S	07 02 05.640	-63 01 34.25	–	V	C57
2019-07-07 15:14:30	s	1 +83389.566	0 +336648.28	3880.0	–	C57
2019-07-07 15:44:30	S	07 02 06.043	-63 00 21.31	–	V	C57
2019-07-07 15:44:30	s	1 +82450.982	0 +337759.45	3970.0	–	C57
2019-07-07 16:14:30	S	07 02 06.365	-62 59 07.22	–	V	C57
2019-07-07 16:14:30	s	1 +81509.997	0 +338860.66	7300.0	–	C57

« Prev 1 2 … 109 110 111 … 239 240 Next » 11960 observations

Epoch (UTC)	Value	Sigma	Units	Freq (MHz)	Receiver	Transmitter
1985-12-08 00:00:00	-295248	20	Hz	2380	-1	-1
1985-12-08.000000	-29524800	2000	Hz	2380	251	251

1866 Sisyphus (1972 XA)