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
2013-06-05 23:43:53 C 16 53 13.05 +02 01 25.7 q C23
2013-06-05 23:45:04 C 16 53 13.21 +02 01 33.7 q A27
2013-06-05 23:46:14 C 16 53 14.03 +02 01 43.6 q A27
2013-06-05 23:47:53 C 16 53 15.16 +02 01 52.4 o A32
2013-06-05 23:50:15 C 16 53 17.48 +02 02 19.8 q K20
2013-06-05 23:52:22 C 16 53 18.26 +02 02 28.8 o A32
2013-06-05 23:53:24 C 16 53 19.58 +02 02 43.7 q C23
2013-06-05 23:54:03 C 16 53 20.06 +02 02 50.9 q K20
2013-06-05 23:55:53 C 16 53 20.68 +02 02 58.2 o A32
2013-06-06 00:03:38 C 16 53 26.63 +02 04 09.6 q K20
2013-06-06 00:11:37 C 16 53 32.08 +02 05 14.6 q K20
2013-06-06 00:21:18 C 16 53 38.70 +02 06 33.7 q K20
2013-06-06 00:24:13 C 16 53 40.67 +02 06 57.2 q K20
2013-06-06 00:28:59 C 16 53 43.93 +02 07 36.2 q K20
2013-06-06 00:32:53 C 16 53 46.59 +02 08 07.9 q K20
2013-06-06 06:30:34 C 16 57 57.99 +02 56 16.5 q H45
2013-06-06 06:31:37 C 16 57 58.67 +02 56 24.5 q H45
2013-06-06 06:32:27 C 16 57 59.19 +02 56 31.0 q H45
2013-06-06 06:36:47 C 16 58 01.99 +02 57 04.9 q H45
2013-06-06 06:37:36 C 16 58 02.52 +02 57 11.2 q H45
2013-06-06 06:39:23 C 16 58 03.67 +02 57 25.3 q H45
2013-06-06 06:40:47 C 16 58 04.57 +02 57 36.1 q H45
2013-06-06 06:41:59 C 16 58 05.35 +02 57 45.4 q H45
2013-06-06 06:42:45 C 16 58 05.85 +02 57 51.4 q H45
2013-06-06 06:43:43 C 16 58 06.48 +02 57 58.9 q H45
2013-06-06 09:13:27 C 16 59 45.34 +03 17 22.7 u G96
2013-06-06 09:23:26 C 16 59 51.72 +03 18 39.0 u G96
2013-06-06 09:33:34 C 16 59 58.20 +03 19 56.3 u G96
2013-06-06 09:43:38 C 17 00 04.64 +03 21 13.2 u G96
2013-06-06 21:48:10 C 17 08 02.59 +04 48 57.6 q A27
2013-06-06 21:56:38 C 17 08 07.94 +04 49 57.5 t G33
2013-06-06 21:56:52 C 17 08 08.10 +04 49 58.8 t G33
2013-06-06 21:58:43 C 17 08 08.90 +04 50 12.0 q A27
2013-06-06 21:58:51 C 17 08 09.26 +04 50 13.0 t G33
2013-06-06 22:00:03 C 17 08 09.95 +04 50 21.6 t G33
2013-06-06 22:00:18 C 17 08 10.12 +04 50 23.0 t G33
2013-06-06 22:00:32 C 17 08 10.31 +04 50 25.0 t G33
2013-06-06 22:08:03 C 17 08 14.43 +04 51 17.3 q A27
2013-06-06 22:12:24 C 17 08 17.39 +04 51 48.8 t G33
2013-06-06 22:12:53 C 17 08 17.65 +04 51 52.6 t G33
2013-06-06 22:14:05 C 17 08 18.34 +04 52 00.3 t G33
2013-06-06 22:15:42 C 17 08 19.31 +04 52 11.7 t G33
2013-06-06 22:16:25 C 17 08 19.74 +04 52 17.0 t G33
2013-06-06 22:30:27 C 17 08 28.06 +04 53 54.4 t G33
2013-06-06 22:31:25 C 17 08 28.68 +04 54 01.5 t G33
2013-06-06 22:32:11 C 17 08 29.10 +04 54 07.0 t G33
2013-06-06 22:33:09 C 17 08 29.64 +04 54 13.3 t G33
2013-06-06 22:33:23 C 17 08 29.81 +04 54 14.9 t G33
2013-06-06 22:33:52 C 17 08 30.09 +04 54 18.7 t G33
2013-06-06 23:14:40 C 17 08 54.20 +04 59 08.2 t B50
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)