285263 (1998 QE2)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
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 Period3.76625295 yr ± 1.20e-08
Physical Parameters
H (abs. magnitude)17.28
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.291″
Uncertainty0
Orbit TypeAmor
MOID0.029660 AU
Observations Used1844
Radar Obs Used4
Oppositions11
Arc Total1998-2025
First Observation Used1998-08-19
Last Observation Used2025-11-23
Observations (1924)
Date Type RA Dec Mag Band Observatory
2013-05-23 00:55:57 C 10 49 35.72 -37 58 17.6 H78
2013-05-23 00:59:01 C 10 49 37.53 -37 58 16.6 H78
2013-05-23 01:01:05 C 10 49 38.75 -37 58 15.9 H78
2013-05-23 01:03:08 C 10 49 39.95 -37 58 15.2 H78
2013-05-23 01:05:11 C 10 49 41.17 -37 58 14.8 H78
2013-05-23 01:07:14 C 10 49 42.39 -37 58 13.9 H78
2013-05-23 01:09:18 C 10 49 43.58 -37 58 13.2 H78
2013-05-23 01:11:21 C 10 49 44.77 -37 58 12.6 H78
2013-05-23 01:13:24 C 10 49 45.99 -37 58 12.3 H78
2013-05-23 01:15:28 C 10 49 47.22 -37 58 11.2 H78
2013-05-23 01:17:31 C 10 49 48.43 -37 58 10.5 H78
2013-05-23 01:19:34 C 10 49 49.64 -37 58 10.0 H78
2013-05-23 01:21:38 C 10 49 50.87 -37 58 09.2 H78
2013-05-23 01:23:41 C 10 49 52.06 -37 58 08.5 H78
2013-05-23 01:25:44 C 10 49 53.29 -37 58 07.8 H78
2013-05-23 01:27:47 C 10 49 54.50 -37 58 07.1 H78
2013-05-23 01:29:51 C 10 49 55.72 -37 58 06.1 H78
2013-05-23 01:31:54 C 10 49 56.94 -37 58 05.5 H78
2013-05-23 01:33:57 C 10 49 58.15 -37 58 04.7 H78
2013-05-23 01:40:08 C 10 50 01.78 -37 58 02.4 H78
2013-05-23 01:42:10 C 10 50 02.99 -37 58 01.7 H78
2013-05-23 01:44:16 C 10 50 04.24 -37 58 00.9 H78
2013-05-23 01:46:18 C 10 50 05.48 -37 58 00.1 H78
2013-05-23 01:48:22 C 10 50 06.70 -37 57 59.4 H78
2013-05-23 01:50:26 C 10 50 07.90 -37 57 58.4 H78
2013-05-23 01:52:29 C 10 50 09.14 -37 57 57.7 H78
2013-05-23 01:54:32 C 10 50 10.32 -37 57 57.0 H78
2013-05-23 01:57:06 C 10 50 11.86 -37 57 55.8 H78
2013-05-23 01:59:43 C 10 50 13.44 -37 57 54.9 H78
2013-05-23 02:01:46 C 10 50 14.66 -37 57 54.1 H78
2013-05-23 02:03:51 C 10 50 15.88 -37 57 53.0 H78
2013-05-23 02:05:54 C 10 50 17.10 -37 57 52.5 H78
2013-05-23 02:07:58 C 10 50 18.35 -37 57 51.5 H78
2013-05-23 02:10:01 C 10 50 19.56 -37 57 50.6 H78
2013-05-23 02:12:05 C 10 50 20.85 -37 57 49.6 H78
2013-05-23 02:14:09 C 10 50 22.07 -37 57 48.9 H78
2013-05-23 02:16:34 C 10 50 23.48 -37 57 47.8 H78
2013-05-23 02:17:09 C 10 50 23.84 -37 57 47.2 H78
2013-05-23 02:17:45 C 10 50 24.20 -37 57 47.1 H78
2013-05-23 02:18:20 C 10 50 24.56 -37 57 47.0 H78
2013-05-23 02:18:55 C 10 50 24.92 -37 57 46.6 H78
2013-05-23 02:19:31 C 10 50 25.27 -37 57 46.7 H78
2013-05-23 02:20:06 C 10 50 25.62 -37 57 46.3 H78
2013-05-23 02:20:42 C 10 50 25.96 -37 57 46.0 H78
2013-05-23 02:21:17 C 10 50 26.33 -37 57 45.4 H78
2013-05-23 02:21:52 C 10 50 26.68 -37 57 45.2 H78
2013-05-23 02:22:28 C 10 50 27.02 -37 57 45.3 H78
2013-05-23 02:23:03 C 10 50 27.40 -37 57 45.0 H78
2013-05-23 02:23:39 C 10 50 27.76 -37 57 44.8 H78
2013-05-23 02:24:14 C 10 50 28.09 -37 57 44.2 H78
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
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
Station codes
-1 Arecibo (305-m, 1963–2020)