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
2013-06-20 21:50:46 C 18 42 04.59 +19 44 04.5 q A84
2013-06-20 21:52:39 C 18 42 04.76 +19 44 05.9 q A84
2013-06-20 21:54:31 C 18 42 04.95 +19 44 07.1 q A84
2013-06-20 21:56:24 C 18 42 05.14 +19 44 08.6 q A84
2013-06-20 21:58:15 C 18 42 05.31 +19 44 09.9 q A84
2013-06-20 22:00:08 C 18 42 05.49 +19 44 11.1 q A84
2013-06-20 22:01:59 C 18 42 05.66 +19 44 12.5 q A84
2013-06-20 22:03:52 C 18 42 05.85 +19 44 13.7 q A84
2013-06-20 22:05:44 C 18 42 06.04 +19 44 15.1 q A84
2013-06-20 22:07:37 C 18 42 06.21 +19 44 16.3 q A84
2013-06-20 22:09:27 C 18 42 06.39 +19 44 17.6 q A84
2013-06-20 22:11:21 C 18 42 06.58 +19 44 18.9 q A84
2013-06-20 22:13:11 C 18 42 06.73 +19 44 20.2 q A84
2013-06-20 22:15:20 C 18 42 06.95 +19 44 21.6 q A84
2013-06-20 22:17:11 C 18 42 07.14 +19 44 22.9 q A84
2013-06-21 22:02:49 C 18 44 41.48 +19 58 49.3 q C23
2013-06-21 22:06:04 C 18 44 41.78 +19 58 51.2 q C23
2013-06-21 22:09:17 C 18 44 42.07 +19 58 53.3 q C23
2013-06-21 22:12:31 C 18 44 42.38 +19 58 55.2 q C23
2013-06-22 00:04:24 C 18 44 52.49 +20 00 00.4 q C23
2013-06-22 00:05:34 C 18 44 52.59 +20 00 01.0 q C23
2013-06-22 00:07:52 C 18 44 52.79 +20 00 02.3 q C23
2013-06-22 00:09:37 C 18 44 52.95 +20 00 03.3 q C23
2013-06-22 04:39:31 C 18 45 22.02 +20 02 44.0 q H45
2013-06-22 04:41:30 C 18 45 22.20 +20 02 45.2 q H45
2013-06-22 04:42:48 C 18 45 22.31 +20 02 46.0 q H45
2013-06-22 04:44:17 C 18 45 22.42 +20 02 46.7 q H45
2013-06-22 04:45:46 C 18 45 22.57 +20 02 47.6 q H45
2013-06-22 04:47:10 C 18 45 22.68 +20 02 48.5 q H45
2013-06-22 04:48:43 C 18 45 22.82 +20 02 49.3 q H45
2013-06-22 04:50:05 C 18 45 22.94 +20 02 50.1 q H45
2013-06-22 21:36:50 C 18 47 00.58 +20 11 06.8 w 213
2013-06-22 22:17:04 C 18 47 03.91 +20 11 27.4 r 006
2013-06-22 22:27:50 C 18 47 04.78 +20 11 32.7 r 006
2013-06-22 22:37:24 C 18 47 05.56 +20 11 37.7 r 006
2013-06-22 22:43:02 C 18 47 06.00 +20 11 40.4 w 213
2013-06-22 23:23:49 C 18 47 09.28 +20 11 59.7 14.4 w C35
2013-06-22 23:27:04 C 18 47 09.51 +20 12 01.8 14.6 w C35
2013-06-22 23:28:00 C 18 47 09.61 +20 12 02.0 14.4 w C35
2013-06-22 23:28:54 C 18 47 09.64 +20 12 02.4 14.4 w C35
2013-06-22 23:29:50 C 18 47 09.73 +20 12 03.2 14.2 w C35
2013-06-22 23:30:46 C 18 47 09.82 +20 12 03.6 14.6 w C35
2013-06-22 23:31:43 C 18 47 09.86 +20 12 04.0 14.0 w C35
2013-06-22 23:32:38 C 18 47 10.08 +20 12 05.5 14.7 w C35
2013-06-22 23:33:33 C 18 47 10.03 +20 12 04.6 14.2 w C35
2013-06-22 23:38:12 C 18 47 10.41 +20 12 07.1 14.4 w C35
2013-06-22 23:39:08 C 18 47 10.47 +20 12 07.7 14.5 w C35
2013-06-22 23:41:55 C 18 47 10.70 +20 12 08.7 14.3 w C35
2013-06-22 23:45:38 C 18 47 10.98 +20 12 10.7 14.5 w C35
2013-06-22 23:46:34 C 18 47 11.06 +20 12 10.9 14.4 w C35
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)