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
2013-01-16 04:52:26 C 10 24 14.53 -14 01 28.7 t W85
2013-01-16 04:57:53 C 10 24 14.55 -14 01 33.3 t W85
2013-01-16 05:03:20 C 10 24 14.57 -14 01 38.0 t W85
2013-01-16 05:08:46 C 10 24 14.60 -14 01 42.6 t W85
2013-01-16 05:14:13 C 10 24 14.61 -14 01 47.3 t W85
2013-01-16 05:19:40 C 10 24 14.64 -14 01 51.9 t W85
2013-01-16 05:25:07 C 10 24 14.66 -14 01 56.6 t W85
2013-01-16 05:30:33 C 10 24 14.68 -14 02 01.2 t W85
2013-01-16 05:36:00 C 10 24 14.70 -14 02 05.9 t W85
2013-01-17 06:53:02 C 10 24 22.76 -14 23 48.7 V G45
2013-01-17 07:48:06 C 10 24 22.88 -14 24 34.9 V G45
2013-01-17 09:59:30 C 10 24 23.22 -14 26 28.2 V G45
2013-01-17 10:41:35 C 10 24 23.31 -14 27 04.3 V G45
2013-01-20 08:09:23 C 10 24 33.62 -15 26 56.3 r 703
2013-01-20 08:21:34 C 10 24 33.66 -15 27 06.8 r 703
2013-01-20 08:33:50 C 10 24 33.58 -15 27 17.8 r 703
2013-01-20 08:46:12 C 10 24 33.58 -15 27 27.9 r 703
2013-01-20 09:27:50 C 10 24 33.50 -15 28 04.4 t 290
2013-01-20 09:29:19 C 10 24 33.49 -15 28 05.7 t 290
2013-01-20 09:30:49 C 10 24 33.49 -15 28 07.1 t 290
2013-01-20 09:32:19 C 10 24 33.49 -15 28 08.3 t 290
2013-01-23 07:17:06 C 10 24 26.57 -16 29 04.4 V G45
2013-01-23 07:37:52 C 10 24 26.42 -16 29 22.6 V G45
2013-01-23 08:31:13 C 10 24 26.07 -16 30 09.9 V G45
2013-01-23 11:26:22 C 10 24 24.97 -16 32 43.5 V G45
2013-01-27 06:54:17 C 10 23 47.34 -17 53 45.5 u H21
2013-01-27 07:05:05 C 10 23 47.20 -17 53 54.9 u H21
2013-01-27 07:10:28 C 10 23 47.11 -17 53 59.9 u H21
2013-01-27 07:15:46 C 10 23 47.05 -17 54 04.7 u H21
2013-01-27 07:21:01 C 10 23 46.97 -17 54 09.4 u H21
2013-01-27 07:26:17 C 10 23 46.91 -17 54 14.0 u H21
2013-01-27 07:31:32 C 10 23 46.84 -17 54 19.0 u H21
2013-02-17 08:31:57 C 10 09 36.49 -25 22 54.7 u H15
2013-02-17 08:45:29 C 10 09 35.83 -25 23 06.0 u H15
2013-02-17 08:59:07 C 10 09 35.14 -25 23 17.7 u H15
2013-02-17 09:12:42 C 10 09 34.42 -25 23 28.7 u H15
2013-03-05 09:36:06 C 09 46 54.47 -30 13 38.1 q Q62
2013-03-05 09:45:09 C 09 46 53.74 -30 13 44.6 q Q62
2013-03-06 13:22:25 C 09 44 57.69 -30 31 01.9 r E12
2013-03-06 13:36:13 C 09 44 56.58 -30 31 10.0 r E12
2013-03-06 13:49:49 C 09 44 55.57 -30 31 18.4 r E12
2013-03-06 14:03:38 C 09 44 54.56 -30 31 26.6 r E12
2013-03-31 02:33:44 C 09 05 35.02 -34 13 15.8 L W91
2013-03-31 02:39:00 C 09 05 34.71 -34 13 16.5 L W91
2013-04-01 11:35:49 C 09 03 53.80 -34 18 28.8 q E12
2013-04-01 11:52:45 C 09 03 52.84 -34 18 31.0 q E12
2013-04-01 12:10:07 C 09 03 51.86 -34 18 33.3 q E12
2013-04-01 12:30:10 C 09 03 50.69 -34 18 35.8 q E12
2013-04-06 03:54:50 C 08 58 52.54 -34 32 22.8 o 844
2013-04-06 04:00:18 C 08 58 52.30 -34 32 23.7 o 844
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)