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
2013-06-11 22:44:55 C 18 01 29.42 +14 12 36.3 q C43
2013-06-11 22:46:13 C 18 01 29.79 +14 12 40.2 q C43
2013-06-11 22:47:40 C 18 01 30.18 +14 12 48.6 q C47
2013-06-11 22:48:03 C 18 01 30.36 +14 12 45.2 q C43
2013-06-11 22:48:24 C 18 01 32.77 +14 13 06.9 r J37
2013-06-11 22:53:24 C 18 01 33.82 +14 13 11.3 w J38
2013-06-11 22:53:47 C 18 01 33.93 +14 13 12.5 w J38
2013-06-11 22:54:10 C 18 01 34.04 +14 13 13.6 w J38
2013-06-11 23:10:23 C 18 01 38.98 +14 14 12.1 r J37
2013-06-11 23:21:22 C 18 01 42.08 +14 14 44.4 r J37
2013-06-11 23:47:20 C 18 01 49.35 +14 16 01.0 r J37
2013-06-11 23:49:05 C 18 01 49.61 +14 15 55.6 w J38
2013-06-11 23:49:53 C 18 01 49.83 +14 15 57.9 w J38
2013-06-11 23:50:40 C 18 01 50.05 +14 16 00.2 w J38
2013-06-11 23:53:04 C 18 01 50.72 +14 16 07.2 w J38
2013-06-11 23:54:39 C 18 01 51.17 +14 16 11.9 w J38
2013-06-11 23:57:25 C 18 01 51.94 +14 16 19.9 w J38
2013-06-12 00:00:59 C 18 01 52.95 +14 16 30.4 w J38
2013-06-12 00:04:33 C 18 01 53.94 +14 16 40.8 w J38
2013-06-12 00:10:48 C 18 01 53.69 +14 16 50.7 q C47
2013-06-12 00:14:55 C 18 01 54.85 +14 17 02.5 q C47
2013-06-12 00:19:02 C 18 01 56.00 +14 17 14.4 q C47
2013-06-12 00:23:16 C 18 01 57.19 +14 17 26.5 q C47
2013-06-12 07:11:59 C 18 03 59.28 +14 37 03.1 q H45
2013-06-12 07:13:11 C 18 03 59.60 +14 37 06.4 q H45
2013-06-12 07:14:03 C 18 03 59.84 +14 37 08.8 q H45
2013-06-12 07:15:18 C 18 04 00.17 +14 37 12.3 q H45
2013-06-12 07:16:16 C 18 04 00.42 +14 37 14.9 q H45
2013-06-12 07:17:26 C 18 04 00.73 +14 37 18.0 q H45
2013-06-12 07:18:39 C 18 04 01.05 +14 37 21.4 q H45
2013-06-12 07:20:17 C 18 04 01.49 +14 37 25.9 q H45
2013-06-13 07:05:44 C 18 10 33.08 +15 37 44.5 q H45
2013-06-13 07:07:32 C 18 10 33.49 +15 37 48.8 q H45
2013-06-13 07:08:23 C 18 10 33.69 +15 37 50.9 q H45
2013-06-13 07:09:28 C 18 10 33.94 +15 37 53.3 q H45
2013-06-13 07:10:25 C 18 10 34.17 +15 37 55.6 q H45
2013-06-13 07:11:11 C 18 10 34.34 +15 37 57.4 q H45
2013-06-13 07:11:58 C 18 10 34.53 +15 37 59.1 q H45
2013-06-13 07:12:19 C 18 10 35.89 +15 38 03.6 q H06
2013-06-13 07:12:44 C 18 10 34.70 +15 38 00.9 q H45
2013-06-13 07:17:04 C 18 10 36.99 +15 38 15.1 q H06
2013-06-13 07:19:57 C 18 10 37.67 +15 38 21.6 q H06
2013-06-13 21:53:44 C 18 14 15.82 +16 10 16.6 q C47
2013-06-13 21:59:41 C 18 14 17.14 +16 10 29.3 q C47
2013-06-13 22:05:03 C 18 14 18.31 +16 10 41.0 q C47
2013-06-13 22:10:12 C 18 14 19.46 +16 10 52.0 q C47
2013-06-13 22:39:25 C 18 14 26.37 +16 12 00.6 q 104
2013-06-13 22:58:14 C 18 14 30.43 +16 12 40.8 q 104
2013-06-13 22:58:36 C 18 14 30.13 +16 12 31.4 q C43
2013-06-13 22:59:15 n 18 14 31.22 +16 12 27.5 q Z92
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)