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
2013-06-08 22:27:43 C 17 34 15.37 +09 36 34.5 w C90
2013-06-08 22:39:59 n 17 34 20.23 +09 37 11.1 q Z92
2013-06-08 22:40:17 n 17 34 20.37 +09 37 12.6 q Z92
2013-06-08 22:40:32 n 17 34 20.49 +09 37 13.9 q Z92
2013-06-08 22:40:48 n 17 34 20.61 +09 37 15.2 q Z92
2013-06-08 22:41:02 n 17 34 20.72 +09 37 16.3 q Z92
2013-06-08 22:43:33 C 17 34 22.25 +09 37 52.7 w C90
2013-06-08 22:59:55 n 17 34 29.01 +09 38 49.6 q Z92
2013-06-08 23:00:14 n 17 34 29.14 +09 38 51.0 q Z92
2013-06-08 23:00:30 n 17 34 29.26 +09 38 52.2 q Z92
2013-06-08 23:00:46 n 17 34 29.37 +09 38 53.4 q Z92
2013-06-08 23:00:59 n 17 34 29.47 +09 38 54.4 q Z92
2013-06-08 23:19:56 n 17 34 37.79 +09 40 27.8 q Z92
2013-06-08 23:20:16 n 17 34 37.93 +09 40 29.2 q Z92
2013-06-08 23:20:30 n 17 34 38.04 +09 40 30.3 q Z92
2013-06-08 23:20:47 n 17 34 38.16 +09 40 31.6 q Z92
2013-06-08 23:20:58 n 17 34 38.23 +09 40 32.4 q Z92
2013-06-09 02:03:35 C 17 35 47.37 +09 53 54.7 t C95
2013-06-09 02:03:51 C 17 35 47.50 +09 53 56.6 t C95
2013-06-09 02:05:26 C 17 35 48.11 +09 54 03.1 t C95
2013-06-09 02:05:41 C 17 35 48.27 +09 54 04.9 t C95
2013-06-09 02:05:58 C 17 35 48.39 +09 54 05.2 t C95
2013-06-09 02:06:13 C 17 35 48.43 +09 54 07.4 t C95
2013-06-09 07:34:36 C 17 38 16.26 +10 20 06.2 q H45
2013-06-09 07:36:08 C 17 38 16.89 +10 20 13.7 q H45
2013-06-09 07:37:09 C 17 38 17.31 +10 20 17.8 q H45
2013-06-09 07:38:26 C 17 38 17.83 +10 20 23.8 q H45
2013-06-09 07:39:48 C 17 38 18.38 +10 20 29.9 q H45
2013-06-09 07:40:39 C 17 38 18.73 +10 20 33.7 q H45
2013-06-09 07:41:40 C 17 38 19.14 +10 20 38.5 q H45
2013-06-09 07:42:27 C 17 38 19.46 +10 20 42.0 q H45
2013-06-09 07:43:35 C 17 38 19.91 +10 20 47.1 q H45
2013-06-09 07:44:23 C 17 38 20.24 +10 20 50.8 q H45
2013-06-09 20:02:47 C 17 43 37.92 +11 14 29.0 o A92
2013-06-09 20:11:54 C 17 43 41.42 +11 15 06.3 o A92
2013-06-09 20:22:39 C 17 43 45.54 +11 15 53.2 o A92
2013-06-09 20:32:14 C 17 43 49.23 +11 16 33.4 o A92
2013-06-09 20:42:00 C 17 43 52.98 +11 17 14.5 o A92
2013-06-09 20:52:30 C 17 43 56.96 +11 17 58.9 o A92
2013-06-09 21:02:22 C 17 44 00.68 +11 18 40.8 o A92
2013-06-09 21:12:31 C 17 44 04.52 +11 19 22.5 o A92
2013-06-09 21:22:29 C 17 44 08.33 +11 20 04.8 o A92
2013-06-09 21:39:36 C 17 44 18.11 +11 21 25.2 q Z81
2013-06-09 22:44:54 C 17 44 42.78 +11 25 58.2 q Z81
2013-06-09 23:51:32 C 17 45 07.52 +11 30 33.5 q Z81
2013-06-10 00:12:40 C 17 45 16.96 +11 32 16.3 12.7 q G40
2013-06-10 00:22:44 C 17 45 20.65 +11 32 57.5 12.8 q G40
2013-06-10 03:37:39 C 17 46 30.99 +11 45 58.7 13.0 q G40
2013-06-10 03:48:09 C 17 46 34.77 +11 46 39.6 13.0 q G40
2013-06-10 22:17:59 C 17 53 28.50 +12 54 46.9 12.7 u 089
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)