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
2013-05-18 01:14:01 C 09 55 30.25 -37 31 37.7 H78
2013-05-18 01:14:37 C 09 55 30.41 -37 31 37.9 H78
2013-05-18 01:15:12 C 09 55 30.62 -37 31 37.9 H78
2013-05-18 01:15:48 C 09 55 30.74 -37 31 38.1 H78
2013-05-18 01:16:22 C 09 55 30.91 -37 31 38.3 H78
2013-05-18 01:16:58 C 09 55 31.10 -37 31 38.5 H78
2013-05-18 01:18:08 C 09 55 31.43 -37 31 38.8 H78
2013-05-18 01:18:44 C 09 55 31.60 -37 31 39.1 H78
2013-05-18 01:19:19 C 09 55 31.75 -37 31 39.2 H78
2013-05-18 01:19:54 C 09 55 31.93 -37 31 39.4 H78
2013-05-18 01:20:29 C 09 55 32.11 -37 31 39.3 H78
2013-05-19 00:11:14 C 10 03 13.97 -37 40 54.1 14.2 H78
2013-05-19 00:16:32 C 10 03 15.66 -37 40 55.8 14.5 H78
2013-05-19 00:17:42 C 10 03 16.03 -37 40 56.5 14.6 H78
2013-05-19 00:19:28 C 10 03 16.59 -37 40 56.7 14.5 H78
2013-05-19 00:20:03 C 10 03 16.80 -37 40 57.2 14.6 H78
2013-05-19 00:20:38 C 10 03 17.00 -37 40 57.7 14.6 H78
2013-05-19 00:21:14 C 10 03 17.17 -37 40 57.7 14.6 H78
2013-05-19 00:21:49 C 10 03 17.35 -37 40 57.9 14.6 H78
2013-05-19 00:22:24 C 10 03 17.55 -37 40 58.0 14.6 H78
2013-05-19 00:23:35 C 10 03 17.92 -37 40 58.4 14.6 H78
2013-05-19 00:24:10 C 10 03 18.12 -37 40 58.6 14.6 H78
2013-05-19 00:24:46 C 10 03 18.32 -37 40 58.8 14.6 H78
2013-05-19 00:25:21 C 10 03 18.49 -37 40 58.9 14.6 H78
2013-05-19 00:25:56 C 10 03 18.70 -37 40 59.2 14.6 H78
2013-05-19 00:26:31 C 10 03 18.89 -37 40 59.4 14.5 H78
2013-05-19 00:27:06 C 10 03 19.09 -37 40 59.6 14.6 H78
2013-05-19 00:27:42 C 10 03 19.26 -37 40 59.9 14.6 H78
2013-05-19 00:28:17 C 10 03 19.43 -37 40 59.7 14.6 H78
2013-05-19 00:28:52 C 10 03 19.63 -37 41 00.1 14.5 H78
2013-05-19 00:29:27 C 10 03 19.81 -37 41 00.2 14.6 H78
2013-05-20 07:40:59 C 10 15 31.47 -37 50 43.7 P E89
2013-05-20 07:46:05 C 10 15 33.54 -37 50 45.0 P E89
2013-05-20 07:52:50 C 10 15 36.24 -37 50 47.0 P E89
2013-05-20 08:01:31 C 10 15 39.84 -37 50 47.7 P E89
2013-05-20 08:07:59 C 10 15 42.41 -37 50 49.8 P E89
2013-05-21 23:20:45 C 10 34 38.74 -37 58 41.5 q I47
2013-05-21 23:21:44 C 10 34 39.23 -37 58 41.6 q I47
2013-05-21 23:22:43 C 10 34 39.73 -37 58 41.6 q I47
2013-05-21 23:27:10 C 10 34 42.01 -37 58 41.9 q I47
2013-05-21 23:27:35 C 10 34 42.20 -37 58 41.9 q I47
2013-05-21 23:33:22 C 10 34 45.20 -37 58 42.2 q I47
2013-05-23 00:43:05 C 10 49 28.21 -37 58 21.2 H78
2013-05-23 00:43:41 C 10 49 28.54 -37 58 21.1 H78
2013-05-23 00:44:16 C 10 49 28.89 -37 58 20.9 H78
2013-05-23 00:46:40 C 10 49 30.31 -37 58 20.2 H78
2013-05-23 00:47:15 C 10 49 30.65 -37 58 19.7 H78
2013-05-23 00:47:51 C 10 49 31.02 -37 58 19.6 H78
2013-05-23 00:49:01 C 10 49 31.67 -37 58 19.3 H78
2013-05-23 00:53:09 C 10 49 34.12 -37 58 18.4 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)