159402 — IAA Minor Planet Database

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.5718875683 ± 2.00e+00
Semi-major axis (a)	2.3795249535 AU ± 3.00e+00
Inclination (i)	7.57251847° ± 4.00e+00
Long. of Asc. Node (Ω)	356.82026746° ± 5.00e+00
Arg. of Perihelion (ω)	47.64325814° ± 6.00e+00
Mean Anomaly (M)	134.48005294° ± 3.87e-06
Mean Motion (n)	0.2685201499°/day ± 5.08e-01
Perihelion dist (q)	1.01870421 AU ± 4.93e+00
Aphelion dist (Q)	3.74034569 AU ± 6.70e+00
Orbital Period	3.67058593 yr ± 6.94e+00
NGA Model	r2
A2	-2.57489810e-06 AU/d²

Physical Parameters

H (abs. magnitude)	16.61
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-04-26
RMS Residual	0.312″
Uncertainty	0
Orbit Type	Amor
MOID	0.075364 AU
Observations Used	4898
Gaia Obs Used	83
Oppositions	12
Arc Total	1999-2016
First Observation Used	1999-01-14
Last Observation Used	2025-05-02

Observations (5945)

Date	Type	RA	Dec	Mag	Band	Observatory
2020-11-11 16:06:48	C	10 47 31.55	+77 28 09.4	–	V	C40
2020-11-11 16:11:38	C	10 47 30.83	+77 27 55.0	–	V	C40
2020-11-11 16:12:50	C	10 47 30.68	+77 27 51.4	–	V	C40
2020-11-11 16:14:02	C	10 47 30.51	+77 27 47.8	–	V	C40
2020-11-11 16:15:16	C	10 47 30.32	+77 27 44.2	–	V	C40
2020-11-11 16:17:41	C	10 47 29.94	+77 27 37.0	–	V	C40
2020-11-11 16:18:52	C	10 47 29.76	+77 27 33.5	–	V	C40
2020-11-11 16:20:05	C	10 47 29.60	+77 27 29.8	–	V	C40
2020-11-11 16:21:18	C	10 47 29.44	+77 27 26.3	–	V	C40
2020-11-11 17:28:52	V	10 47 11.42	+77 24 12.2	14.6	V	247
2020-11-11 17:28:52	v	1 006.73793	+47.04989	–	–	247
2020-11-11 17:33:38	C	10 47 10.97	+77 23 59.6	–	V	K85
2020-11-11 17:43:54	C	10 47 31.42	+77 24 16.1	–	q	P30
2020-11-11 17:46:05	V	10 47 08.76	+77 23 20.5	14.5	V	247
2020-11-11 17:46:05	v	1 006.73793	+47.04989	–	–	247
2020-11-11 17:57:59	V	10 47 07.08	+77 22 45.0	14.5	V	247
2020-11-11 17:57:59	v	1 006.73793	+47.04989	–	–	247
2020-11-11 17:59:28	C	10 47 07.05	+77 22 42.4	–	V	K85
2020-11-11 18:01:10	C	10 47 27.56	+77 23 29.3	–	q	P30
2020-11-11 18:09:54	V	10 47 05.24	+77 22 09.4	14.4	V	247
2020-11-11 18:09:54	v	1 006.73793	+47.04989	–	–	247
2020-11-11 18:18:12	C	10 47 23.74	+77 22 43.8	–	q	P30
2020-11-11 18:20:30	V	10 47 03.69	+77 21 37.7	14.6	V	247
2020-11-11 18:20:30	v	1 006.73793	+47.04989	–	–	247
2020-11-11 18:31:05	V	10 47 02.18	+77 21 06.3	14.4	V	247
2020-11-11 18:31:05	v	1 006.73793	+47.04989	–	–	247
2020-11-11 18:41:41	V	10 47 00.62	+77 20 35.1	14.5	V	247
2020-11-11 18:41:41	v	1 006.73793	+47.04989	–	–	247
2020-11-11 18:52:16	V	10 46 59.04	+77 20 03.4	14.5	V	247
2020-11-11 18:52:16	v	1 006.73793	+47.04989	–	–	247
2020-11-11 19:02:52	V	10 46 57.55	+77 19 32.3	14.6	V	247
2020-11-11 19:02:52	v	1 006.73793	+47.04989	–	–	247
2020-11-11 19:14:47	V	10 46 55.88	+77 18 57.4	14.8	V	247
2020-11-11 19:14:47	v	1 006.73793	+47.04989	–	–	247
2020-11-11 19:25:22	V	10 46 54.34	+77 18 27.0	14.7	V	247
2020-11-11 19:25:22	v	1 006.73793	+47.04989	–	–	247
2020-11-11 19:35:58	V	10 46 52.68	+77 17 56.4	14.8	V	247
2020-11-11 19:35:58	v	1 006.73793	+47.04989	–	–	247
2020-11-11 19:46:33	V	10 46 51.27	+77 17 25.8	14.9	V	247
2020-11-11 19:46:33	v	1 006.73793	+47.04989	–	–	247
2020-11-11 19:57:09	V	10 46 49.49	+77 16 54.8	14.9	V	247
2020-11-11 19:57:09	v	1 006.73793	+47.04989	–	–	247
2020-11-11 20:07:44	V	10 46 47.77	+77 16 25.0	15.0	V	247
2020-11-11 20:07:44	v	1 006.73793	+47.04989	–	–	247
2020-11-11 21:27:23	C	10 46 38.50	+77 12 41.4	–	V	L74
2020-11-11 21:27:43	C	10 46 38.43	+77 12 40.3	–	V	L74
2020-11-11 21:28:03	C	10 46 38.37	+77 12 39.6	–	V	L74
2020-11-11 21:28:22	C	10 46 38.32	+77 12 38.5	–	V	L74
2020-11-11 21:28:42	C	10 46 38.24	+77 12 37.7	–	V	L74
2020-11-12 16:49:04	C	10 43 02.65	+76 17 51.0	–	q	P30

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Epoch (UTC)	Value	Sigma	Units	Freq (MHz)	Receiver	Transmitter
2009-10-11 01:31:00	87906655.26	8	us	2380	-1	-1
2009-10-12 00:08:00	85713954.267	4	us	2380	-1	-1
2009-10-12 23:58:00	83619759.401	4	us	2380	-1	-1
2009-10-13 23:53:00	81754691.25	4	us	2380	-1	-1
2020-10-24 05:10:00	83056497.8	1	us	8560	-14	-14

159402 (1999 AP10)