285263 — IAA Minor Planet Database

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.5727151351 ± 2.12e-09
Semi-major axis (a)	2.4206926771 AU ± 5.13e-09
Inclination (i)	12.87778231° ± 6.59e-07
Long. of Asc. Node (Ω)	250.07086861° ± 5.35e-07
Arg. of Perihelion (ω)	345.66936702° ± 1.74e-06
Mean Anomaly (M)	113.98169612° ± 3.79e-06
Mean Motion (n)	0.2616994389°/day ± 8.32e-10
Perihelion dist (q)	1.03432534 AU ± 5.59e-09
Aphelion dist (Q)	3.80706001 AU ± 9.57e-09
Orbital Period	3.76625295 yr ± 1.20e-08

Physical Parameters

H (abs. magnitude)	17.28
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-05-31
RMS Residual	0.291″
Uncertainty	0
Orbit Type	Amor
MOID	0.029660 AU
Observations Used	1844
Radar Obs Used	4
Oppositions	11
Arc Total	1998-2025
First Observation Used	1998-08-19
Last Observation Used	2025-11-23

Observations (1924)

Date	Type	RA	Dec	Mag	Band	Observatory
2013-04-06 04:09:21	C	08 58 51.94	-34 32 24.0	–	o	844
2013-04-11 08:38:09	C	08 54 52.82	-34 43 01.1	–	P	E89
2013-04-11 08:42:08	C	08 54 52.53	-34 42 58.0	–	P	E89
2013-04-11 08:43:52	C	08 54 52.64	-34 42 59.1	–	P	E89
2013-04-11 08:45:36	C	08 54 52.56	-34 42 57.4	–	P	E89
2013-04-11 08:47:19	C	08 54 52.49	-34 42 59.2	–	P	E89
2013-04-11 08:50:47	C	08 54 52.31	-34 42 59.8	–	P	E89
2013-04-11 08:58:10	C	08 54 51.97	-34 43 00.5	–	P	E89
2013-04-11 09:01:36	C	08 54 52.10	-34 42 59.1	–	P	E89
2013-04-11 09:03:21	C	08 54 51.90	-34 43 01.0	–	P	E89
2013-04-11 09:05:04	C	08 54 51.91	-34 43 03.2	–	P	E89
2013-04-12 08:03:08	C	08 54 19.92	-34 44 36.5	–	q	E89
2013-04-12 08:04:12	C	08 54 19.90	-34 44 35.3	–	q	E89
2013-04-12 08:05:15	C	08 54 19.97	-34 44 35.8	–	q	E89
2013-04-12 08:06:19	C	08 54 19.94	-34 44 35.2	–	q	E89
2013-04-14 03:25:12	C	08 53 27.26	-34 47 22.5	–	o	844
2013-04-14 03:36:38	C	08 53 27.04	-34 47 22.6	–	o	844
2013-04-14 03:54:05	C	08 53 26.70	-34 47 23.5	–	o	844
2013-04-18 08:15:32	C	08 52 26.89	-34 54 09.3	–	P	E89
2013-04-18 10:49:08	C	08 52 25.29	-34 54 13.9	–	P	E89
2013-04-18 11:06:24	C	08 52 25.15	-34 54 13.8	–	P	E89
2013-04-28 07:26:00	C	08 55 59.90	-35 17 27.4	–	P	E89
2013-04-28 07:36:08	C	08 56 00.23	-35 17 27.9	–	P	E89
2013-04-28 07:37:52	C	08 56 00.28	-35 17 28.0	–	P	E89
2013-04-28 07:39:37	C	08 56 00.23	-35 17 29.2	–	P	E89
2013-04-28 07:41:20	C	08 56 00.31	-35 17 29.3	–	P	E89
2013-04-28 07:46:32	C	08 56 00.42	-35 17 29.3	–	P	E89
2013-04-28 07:48:17	C	08 56 00.44	-35 17 30.6	–	P	E89
2013-04-29 08:08:51	C	08 56 55.30	-35 20 56.8	–	P	E89
2013-04-29 08:11:10	C	08 56 55.38	-35 20 56.6	–	P	E89
2013-04-29 08:15:19	C	08 56 55.52	-35 20 55.9	–	P	E89
2013-05-07 07:14:51	C	09 09 19.17	-35 58 45.4	–	q	E89
2013-05-07 08:16:49	C	09 09 24.09	-35 58 57.5	–	q	E89
2013-05-07 08:24:17	C	09 09 24.70	-35 59 00.0	–	q	E89
2013-05-17 00:04:38	C	09 48 07.89	-37 21 12.0	–	–	H78
2013-05-17 00:05:13	C	09 48 08.02	-37 21 12.0	–	–	H78
2013-05-17 00:05:49	C	09 48 08.17	-37 21 12.5	–	–	H78
2013-05-17 00:06:23	C	09 48 08.29	-37 21 12.6	–	–	H78
2013-05-17 00:06:59	C	09 48 08.45	-37 21 13.0	–	–	H78
2013-05-17 00:07:33	C	09 48 08.61	-37 21 13.2	–	–	H78
2013-05-17 00:08:09	C	09 48 08.71	-37 21 13.4	–	–	H78
2013-05-17 00:08:43	C	09 48 08.88	-37 21 13.6	–	–	H78
2013-05-17 00:09:19	C	09 48 09.01	-37 21 13.6	–	–	H78
2013-05-17 00:09:53	C	09 48 09.18	-37 21 13.8	–	–	H78
2013-05-17 00:10:28	C	09 48 09.29	-37 21 14.2	–	–	H78
2013-05-17 00:12:39	C	09 48 09.82	-37 21 15.0	–	–	H78
2013-05-17 00:13:14	C	09 48 09.96	-37 21 15.6	–	–	H78
2013-05-17 00:13:50	C	09 48 10.12	-37 21 15.5	–	–	H78
2013-05-17 00:14:25	C	09 48 10.25	-37 21 15.7	–	–	H78
2013-05-17 00:15:01	C	09 48 10.40	-37 21 15.8	–	–	H78

« Prev 1 2 … 4 5 6 … 38 39 Next » 1924 observations

Epoch (UTC)	Value	Sigma	Units	Freq (MHz)	Receiver	Transmitter
2013-06-07 05:00:00	55277706.99	1	us	2380	-1	-1
2013-06-11 06:16:00	75259618.58	1	us	2380	-1	-1
2013-06-13 05:59:00	86115379.37	1	us	2380	-1	-1
2013-06-27 06:00:00	169939823.4	2	us	2380	-1	-1

285263 (1998 QE2)