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
2013-06-13 22:59:33 n 18 14 31.30 +16 12 28.2 q Z92
2013-06-13 22:59:49 n 18 14 31.38 +16 12 28.8 q Z92
2013-06-13 22:59:55 C 18 14 30.41 +16 12 34.1 q C43
2013-06-13 23:00:05 n 18 14 31.45 +16 12 29.4 q Z92
2013-06-13 23:00:18 n 18 14 31.51 +16 12 29.9 q Z92
2013-06-13 23:01:20 C 18 14 30.72 +16 12 37.1 q C43
2013-06-13 23:03:02 C 18 14 31.10 +16 12 40.8 q C43
2013-06-13 23:04:21 C 18 14 31.39 +16 12 43.5 q C43
2013-06-13 23:20:04 n 18 14 35.85 +16 13 11.8 q Z92
2013-06-13 23:20:22 n 18 14 35.92 +16 13 12.7 q Z92
2013-06-13 23:20:38 n 18 14 35.98 +16 13 13.5 q Z92
2013-06-13 23:20:55 n 18 14 36.04 +16 13 14.3 q Z92
2013-06-13 23:21:07 n 18 14 36.09 +16 13 15.0 q Z92
2013-06-14 00:28:09 C 18 14 49.58 +16 15 42.3 q C47
2013-06-14 00:33:38 C 18 14 50.77 +16 15 53.5 q C47
2013-06-14 00:39:22 C 18 14 52.01 +16 16 05.3 q C47
2013-06-14 00:45:05 C 18 14 53.25 +16 16 17.1 q C47
2013-06-14 01:10:31 C 18 14 59.58 +16 17 06.9 q C23
2013-06-14 01:17:34 C 18 15 01.13 +16 17 21.2 q C23
2013-06-14 01:19:18 C 18 15 01.48 +16 17 24.9 q C23
2013-06-14 01:51:17 C 18 15 08.44 +16 18 30.4 q C23
2013-06-14 01:57:05 C 18 15 09.69 +16 18 42.1 q C23
2013-06-14 02:02:52 C 18 15 10.95 +16 18 53.8 q C23
2013-06-14 02:05:46 C 18 15 11.58 +16 18 59.7 q C23
2013-06-14 02:08:39 C 18 15 12.21 +16 19 05.5 q C23
2013-06-14 02:14:26 C 18 15 13.47 +16 19 17.2 q C23
2013-06-14 02:20:13 C 18 15 14.73 +16 19 29.0 q C23
2013-06-14 21:19:17 C 18 19 33.86 +16 56 01.5 q C23
2013-06-14 21:25:03 C 18 19 35.01 +16 56 12.3 q C23
2013-06-14 21:29:06 C 18 19 35.81 +16 56 19.8 q C23
2013-06-14 21:33:09 C 18 19 36.63 +16 56 27.3 q C23
2013-06-14 22:16:40 C 18 19 45.32 +16 57 49.2 q K20
2013-06-14 22:27:34 C 18 19 47.44 +16 58 09.2 q K20
2013-06-14 22:49:16 C 18 19 51.72 +16 58 48.6 q K20
2013-06-14 23:00:41 C 18 19 53.93 +16 59 09.4 q K20
2013-06-14 23:13:33 C 18 19 56.45 +16 59 32.8 q K20
2013-06-14 23:31:07 C 18 19 59.89 +17 00 04.8 q K20
2013-06-15 01:35:33 C 18 20 23.75 +17 03 43.2 q C23
2013-06-15 01:37:52 C 18 20 24.19 +17 03 47.3 q C23
2013-06-15 01:40:46 C 18 20 24.75 +17 03 52.3 q C23
2013-06-15 06:44:45 C 18 21 28.76 +17 13 05.0 t H47
2013-06-15 06:46:15 C 18 21 29.02 +17 13 07.4 t H47
2013-06-15 06:49:14 C 18 21 29.56 +17 13 12.6 t H47
2013-06-15 06:50:43 C 18 21 29.84 +17 13 15.1 t H47
2013-06-15 06:52:04 C 18 21 30.07 +17 13 17.3 t H47
2013-06-15 06:53:42 C 18 21 30.38 +17 13 20.2 t H47
2013-06-15 22:13:39 C 18 24 33.72 +17 37 47.7 c J19
2013-06-15 22:16:45 C 18 24 34.29 +17 37 52.8 c J19
2013-06-15 22:19:25 C 18 24 34.73 +17 37 57.0 c J19
2013-06-15 22:22:05 C 18 24 35.19 +17 38 01.1 c J19
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)