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
2013-06-01 22:19:16 C 15 18 49.27 -15 25 02.3 q Z74
2013-06-01 22:19:17 C 15 18 42.78 -15 25 16.4 q C73
2013-06-01 22:19:36 C 15 18 43.17 -15 25 12.2 q C73
2013-06-01 22:19:56 C 15 18 43.56 -15 25 08.1 q C73
2013-06-01 22:20:15 C 15 18 43.96 -15 25 03.9 q C73
2013-06-01 22:20:25 C 15 18 50.63 -15 24 48.0 q Z74
2013-06-01 22:20:34 C 15 18 44.34 -15 24 59.9 q C73
2013-06-01 22:20:46 C 15 18 51.06 -15 24 43.5 q Z74
2013-06-01 22:20:54 C 15 18 44.73 -15 24 55.8 q C73
2013-06-01 22:21:36 C 15 18 52.03 -15 24 33.0 q Z74
2013-06-01 22:22:01 C 15 18 52.53 -15 24 27.8 q Z74
2013-06-01 22:23:35 C 15 18 54.38 -15 24 08.4 q Z74
2013-06-01 22:25:22 C 15 18 56.48 -15 23 46.3 q Z74
2013-06-01 22:26:56 C 15 18 58.34 -15 23 26.8 q Z74
2013-06-01 22:27:03 C 15 18 56.21 -15 23 53.0 q C23
2013-06-01 22:27:46 C 15 18 59.32 -15 23 16.6 q Z74
2013-06-01 22:28:05 C 15 18 57.47 -15 23 39.8 q C23
2013-06-01 22:28:30 C 15 19 00.18 -15 23 07.5 q Z74
2013-06-01 22:30:29 C 15 19 02.55 -15 22 42.3 q Z74
2013-06-01 22:31:26 C 15 19 03.66 -15 22 30.7 q Z74
2013-06-01 22:34:27 C 15 19 07.20 -15 21 53.0 q Z74
2013-06-01 22:35:42 C 15 19 08.69 -15 21 37.5 q Z74
2013-06-01 22:36:19 C 15 19 09.42 -15 21 30.0 q Z74
2013-06-01 22:36:51 C 15 19 10.05 -15 21 23.4 q Z74
2013-06-01 22:37:47 C 15 19 11.15 -15 21 11.6 q Z74
2013-06-01 22:39:50 C 15 19 11.41 -15 21 14.0 q C23
2013-06-01 22:40:20 C 15 19 12.07 -15 21 07.2 q C23
2013-06-01 22:47:46 C 15 19 21.17 -15 19 17.1 w 213
2013-06-01 23:07:30 C 15 19 45.84 -15 15 09.9 c I72
2013-06-01 23:08:46 C 15 19 47.38 -15 14 52.8 c I72
2013-06-02 00:11:33 C 15 21 01.41 -15 01 48.9 c I72
2013-06-02 01:35:08 C 15 22 39.93 -14 44 14.2 r J37
2013-06-02 01:46:06 C 15 22 52.83 -14 41 56.4 r J37
2013-06-02 01:48:13 C 15 22 54.48 -14 41 35.1 w 213
2013-06-02 02:02:14 C 15 23 11.85 -14 38 33.6 r J37
2013-06-02 02:14:24 C 15 23 26.17 -14 36 00.5 r J37
2013-06-02 02:27:25 C 15 23 41.53 -14 33 16.8 r J37
2013-06-02 02:46:45 C 15 24 04.39 -14 29 13.8 r J37
2013-06-02 21:48:04 C 15 46 22.94 -10 36 00.1 c Z83
2013-06-02 22:22:28 C 15 46 57.70 -10 29 28.2 q K20
2013-06-02 22:25:07 C 15 47 00.35 -10 28 56.7 q K20
2013-06-02 22:25:45 C 15 47 01.18 -10 28 48.5 q K20
2013-06-02 22:27:54 C 15 47 03.47 -10 28 22.8 q K20
2013-06-02 22:48:21 C 15 47 26.79 -10 23 56.9 c Z83
2013-06-02 22:53:06 C 15 47 31.19 -10 23 21.0 q J84
2013-06-02 22:55:48 C 15 47 34.05 -10 22 48.7 q J84
2013-06-02 22:58:29 C 15 47 36.92 -10 22 16.4 q J84
2013-06-02 23:01:10 C 15 47 39.76 -10 21 44.3 q J84
2013-06-02 23:03:52 C 15 47 42.61 -10 21 12.0 q J84
2013-06-02 23:06:32 C 15 47 45.47 -10 20 39.8 q J84
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)