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
2013-05-28 10:11:09 C 12 52 28.33 -33 11 13.2 q E10
2013-05-29 09:13:45 C 13 23 09.72 -30 36 19.1 P E89
2013-05-29 09:21:42 C 13 23 20.15 -30 35 17.6 P E89
2013-05-29 09:28:56 C 13 23 29.70 -30 34 21.9 P E89
2013-05-29 09:33:14 C 13 23 35.35 -30 33 48.6 P E89
2013-05-29 09:48:48 C 13 23 55.83 -30 31 47.2 P E89
2013-05-29 09:54:10 C 13 24 02.92 -30 31 05.4 P E89
2013-05-29 10:01:41 C 13 24 12.87 -30 30 06.6 P E89
2013-05-29 10:06:08 C 13 24 18.71 -30 29 31.3 P E89
2013-05-29 10:10:18 C 13 24 24.22 -30 28 58.5 P E89
2013-05-29 10:25:15 C 13 24 43.96 -30 27 00.2 P E89
2013-05-29 10:30:14 C 13 24 50.54 -30 26 20.7 P E89
2013-05-29 20:10:25 C 13 38 20.31 -29 10 35.8 w 213
2013-05-29 20:24:12 C 13 38 38.84 -29 08 37.2 w 213
2013-05-29 20:36:49 C 13 38 55.77 -29 06 48.3 w 213
2013-05-29 21:55:34 C 13 40 41.75 -28 55 18.2 u B74
2013-05-29 22:10:06 C 13 41 01.30 -28 53 08.4 u B74
2013-05-29 22:14:13 C 13 41 06.84 -28 52 32.2 u B74
2013-05-29 23:38:11 C 13 43 02.81 -28 39 40.8 o G40
2013-05-29 23:38:55 C 13 43 03.73 -28 39 34.7 o G40
2013-05-29 23:39:40 C 13 43 04.78 -28 39 27.8 13.1 o G40
2013-05-30 20:22:41 C 14 12 16.17 -25 16 39.1 c J08
2013-05-30 20:30:58 C 14 12 25.84 -25 15 22.4 q C77
2013-05-30 20:31:23 C 14 12 26.40 -25 15 17.9 q C77
2013-05-30 20:31:48 C 14 12 26.96 -25 15 12.5 q C77
2013-05-30 20:32:13 C 14 12 27.50 -25 15 08.2 q C77
2013-05-30 20:46:37 C 14 12 48.58 -25 12 27.1 c J08
2013-05-30 20:52:07 C 14 12 56.24 -25 11 27.6 w I57
2013-05-30 21:02:26 C 14 13 10.17 -25 09 37.6 w I57
2013-05-30 21:09:37 C 14 13 19.85 -25 08 21.6 w I57
2013-05-30 21:15:33 C 14 13 27.45 -25 07 21.8 c J08
2013-05-30 21:56:21 C 14 14 23.65 -25 00 09.4 w J01
2013-05-30 21:59:16 C 14 14 27.57 -24 59 38.1 w J01
2013-05-30 22:00:59 C 14 14 29.92 -24 59 19.6 w J01
2013-05-30 22:02:24 C 14 14 31.82 -24 59 04.5 w J01
2013-05-30 22:03:23 C 14 14 33.09 -24 58 54.2 w J01
2013-05-31 03:28:28 C 14 22 08.24 -23 59 40.7 10.9 q H36
2013-05-31 03:33:07 C 14 22 14.44 -23 58 49.0 11.4 q H36
2013-05-31 03:34:35 C 14 22 16.40 -23 58 33.5 11.3 q H36
2013-05-31 03:38:50 C 14 22 22.08 -23 57 46.2 11.4 q H36
2013-05-31 04:49:49 C 14 24 02.53 -23 44 31.8 t G58
2013-05-31 04:51:12 C 14 24 04.43 -23 44 16.5 t G58
2013-05-31 04:52:33 C 14 24 06.19 -23 44 01.6 t G58
2013-05-31 05:06:04 C 14 24 24.17 -23 41 31.4 t G58
2013-05-31 05:08:37 C 14 24 27.61 -23 41 03.1 t G58
2013-05-31 05:22:40 C 14 24 42.73 -23 38 15.8 q 448
2013-05-31 05:28:26 C 14 24 50.40 -23 37 11.1 q 448
2013-05-31 05:34:35 C 14 24 58.54 -23 36 01.8 q 448
2013-05-31 05:40:53 C 14 25 06.90 -23 34 50.8 q 448
2013-05-31 05:47:07 C 14 25 15.17 -23 33 40.2 q 448
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)