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
2013-07-13 21:32:06 C 19 09 54.67 +19 14 58.9 q C23
2013-07-13 21:38:39 C 19 09 54.80 +19 14 57.2 q K20
2013-07-13 21:39:39 C 19 09 54.80 +19 14 55.2 q C23
2013-07-13 21:46:29 C 19 09 54.91 +19 14 53.2 q K20
2013-07-13 21:50:02 C 19 09 54.74 +19 14 50.8 q G34
2013-07-13 21:52:23 C 19 09 54.95 +19 14 49.3 q K20
2013-07-13 21:58:21 C 19 09 54.97 +19 14 47.4 q K20
2013-07-13 22:10:04 C 19 09 55.15 +19 14 42.8 q G34
2013-07-13 22:11:40 C 19 09 55.19 +19 14 41.5 q G34
2013-07-13 22:14:38 C 19 09 55.26 +19 14 40.3 q G34
2013-07-13 22:20:06 C 19 09 55.32 +19 14 37.9 q G34
2013-07-13 23:54:52 C 19 09 56.76 +19 13 54.1 u 118
2013-07-14 00:59:43 C 19 09 57.87 +19 13 22.9 u 118
2013-07-14 01:09:41 C 19 09 58.05 +19 13 18.1 u 118
2013-07-14 23:03:59 C 19 10 28.30 +19 02 56.5 i C91
2013-07-14 23:08:59 C 19 10 28.37 +19 02 54.0 i C91
2013-07-14 23:17:59 C 19 10 28.51 +19 02 49.6 i C91
2013-07-14 23:23:59 C 19 10 28.60 +19 02 46.8 i C91
2013-07-15 21:26:21 C 19 10 58.26 +18 51 49.8 q C23
2013-07-15 21:30:40 C 19 10 58.33 +18 51 48.1 q C23
2013-07-15 21:35:34 C 19 10 58.42 +18 51 46.3 q K20
2013-07-15 21:36:03 C 19 10 58.42 +18 51 45.5 q C23
2013-07-15 21:41:26 C 19 10 58.51 +18 51 42.7 q C23
2013-07-15 22:22:15 C 19 10 59.12 +18 51 23.3 q K20
2013-07-15 22:26:12 C 19 10 59.19 +18 51 21.5 q K20
2013-07-15 22:31:54 C 19 10 59.30 +18 51 18.2 t B50
2013-07-15 22:34:02 C 19 10 59.38 +18 51 16.4 q K20
2013-07-15 22:35:17 C 19 10 59.33 +18 51 16.7 t B50
2013-07-15 22:37:36 C 19 10 59.31 +18 51 16.0 t B50
2013-07-15 23:10:09 C 19 10 59.83 +18 50 58.2 t B50
2013-07-16 22:41:00 C 19 11 30.04 +18 39 00.1 i C91
2013-07-16 22:45:59 C 19 11 30.13 +18 38 57.6 i C91
2013-07-16 22:57:00 C 19 11 30.29 +18 38 52.3 i C91
2013-07-17 04:54:40 C 19 11 39.01 +18 35 45.4 r G60
2013-07-17 05:10:26 C 19 11 39.29 +18 35 37.4 r G60
2013-07-17 05:38:54 C 19 11 39.68 +18 35 23.0 r G60
2013-07-18 22:44:59 C 19 12 30.10 +18 13 12.5 q C23
2013-07-18 22:49:17 C 19 12 30.18 +18 13 10.0 q C23
2013-07-18 22:54:41 C 19 12 30.25 +18 13 07.3 q C23
2013-07-18 23:00:04 C 19 12 30.34 +18 13 04.4 q C23
2013-07-19 03:29:24 C 19 12 35.29 +18 11 07.5 r Y00
2013-07-19 03:41:49 C 19 12 35.49 +18 10 59.9 r Y00
2013-07-19 03:58:09 C 19 12 35.58 +18 10 48.8 r Y00
2013-07-19 22:05:12 C 19 12 59.20 +18 00 17.5 q Z81
2013-07-19 22:18:05 C 19 12 59.09 +18 00 04.7 q C23
2013-07-19 22:22:24 C 19 12 59.13 +18 00 02.2 q C23
2013-07-19 22:26:43 C 19 12 59.20 +17 59 59.8 q C23
2013-07-19 22:31:02 C 19 12 59.26 +17 59 57.3 q C23
2013-07-19 23:37:36 C 19 13 00.48 +17 59 26.0 q Z81
2013-07-20 00:15:17 C 19 13 01.00 +17 59 04.7 q Z81
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)