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
2013-06-02 23:24:54 C 15 48 05.55 -10 16 31.6 q J53
2013-06-02 23:28:20 C 15 48 11.67 -10 15 24.3 o G40
2013-06-02 23:29:05 C 15 48 12.46 -10 15 15.4 o G40
2013-06-02 23:29:29 C 15 48 10.36 -10 15 36.7 q J53
2013-06-02 23:29:51 C 15 48 13.27 -10 15 06.1 12.4 o G40
2013-06-02 23:30:29 C 15 48 11.42 -10 15 24.7 q J53
2013-06-02 23:37:32 C 15 48 18.81 -10 14 00.4 q J53
2013-06-02 23:44:30 C 15 48 24.73 -10 13 04.2 q C23
2013-06-02 23:47:27 C 15 48 27.87 -10 12 28.6 q C23
2013-06-02 23:50:24 C 15 48 31.00 -10 11 53.4 q C23
2013-06-03 00:30:12 C 15 49 13.16 -10 03 55.2 q C23
2013-06-03 00:32:30 C 15 49 15.56 -10 03 28.5 q C23
2013-06-03 00:48:22 C 15 49 34.95 -09 59 26.6 o G40
2013-06-03 00:49:05 C 15 49 35.69 -09 59 18.2 o G40
2013-06-03 00:49:48 C 15 49 36.49 -09 59 08.9 12.3 o G40
2013-06-03 02:08:13 C 15 50 57.75 -09 43 30.9 12.6 o G40
2013-06-03 02:08:56 C 15 50 58.49 -09 43 22.4 o G40
2013-06-03 02:09:38 C 15 50 59.22 -09 43 14.0 o G40
2013-06-03 02:33:08 C 15 51 23.60 -09 38 32.9 o G40
2013-06-03 02:33:51 C 15 51 24.35 -09 38 24.2 o G40
2013-06-03 02:34:35 C 15 51 25.08 -09 38 15.7 12.5 o G40
2013-06-03 06:35:57 C 15 55 46.93 -08 51 10.4 q H45
2013-06-03 06:37:07 C 15 55 48.11 -08 50 56.7 q H45
2013-06-03 06:37:26 C 15 55 48.43 -08 50 53.1 q H45
2013-06-03 06:38:05 C 15 55 49.10 -08 50 45.2 q H45
2013-06-03 06:39:07 C 15 55 50.12 -08 50 33.3 q H45
2013-06-03 06:39:46 C 15 55 50.78 -08 50 25.8 q H45
2013-06-03 06:40:35 C 15 55 51.60 -08 50 16.3 q H45
2013-06-03 06:41:24 C 15 55 52.43 -08 50 06.4 q H45
2013-06-03 06:42:02 C 15 55 53.09 -08 49 58.8 q H45
2013-06-03 06:46:22 C 15 55 57.44 -08 49 08.0 q H45
2013-06-03 06:47:53 C 15 55 59.00 -08 48 50.4 q H45
2013-06-03 06:48:33 C 15 55 59.66 -08 48 42.5 q H45
2013-06-03 19:10:47 C 16 08 48.44 -06 27 34.4 o A92
2013-06-03 19:20:32 C 16 08 57.71 -06 25 45.3 o A92
2013-06-03 19:30:18 C 16 09 07.01 -06 23 56.7 o A92
2013-06-03 19:40:06 C 16 09 16.23 -06 22 09.3 o A92
2013-06-03 19:50:28 C 16 09 26.09 -06 20 13.9 o A92
2013-06-03 20:00:24 C 16 09 35.55 -06 18 23.5 o A92
2013-06-03 20:10:32 C 16 09 45.03 -06 16 31.4 o A92
2013-06-03 20:19:16 C 16 09 53.26 -06 14 55.1 o A92
2013-06-03 20:35:15 C 16 10 13.78 -06 11 35.5 r J37
2013-06-03 20:56:55 C 16 10 34.24 -06 07 37.4 r J37
2013-06-03 21:22:53 C 16 10 58.67 -06 02 51.6 r J37
2013-06-03 21:24:51 C 16 10 54.75 -06 02 50.2 o A92
2013-06-03 21:30:16 C 16 10 59.71 -06 01 50.3 o A92
2013-06-03 21:40:13 C 16 11 14.85 -05 59 41.3 r J37
2013-06-03 21:45:17 C 16 11 16.78 -05 59 18.7 q C23
2013-06-03 21:47:34 C 16 11 18.94 -05 58 53.3 q C23
2013-06-03 21:49:18 C 16 11 23.32 -05 58 01.6 r J37
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)