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
2013-06-04 05:53:10 C 16 18 56.93 -04 30 51.8 q H45
2013-06-04 05:54:39 C 16 18 58.24 -04 30 36.0 q H45
2013-06-04 05:55:43 C 16 18 59.19 -04 30 24.6 q H45
2013-06-04 05:56:33 C 16 18 59.89 -04 30 16.1 q H45
2013-06-04 05:57:33 C 16 19 00.80 -04 30 05.2 q H45
2013-06-04 06:00:12 C 16 19 03.13 -04 29 37.7 q H45
2013-06-04 09:15:14 C 16 21 55.93 -03 55 23.3 w H06
2013-06-04 09:19:01 C 16 21 59.24 -03 54 43.7 w H06
2013-06-04 09:23:44 C 16 22 03.37 -03 53 54.6 w H06
2013-06-04 09:26:26 C 16 22 05.72 -03 53 26.6 w H06
2013-06-04 12:44:41 C 16 25 16.67 -03 19 32.7 o 300
2013-06-04 12:46:00 C 16 25 17.78 -03 19 19.5 o 300
2013-06-04 12:47:18 C 16 25 18.89 -03 19 06.2 o 300
2013-06-04 12:48:36 C 16 25 19.98 -03 18 52.7 o 300
2013-06-04 20:47:39 C 16 32 17.46 -01 59 34.0 r 006
2013-06-04 20:51:42 C 16 32 20.77 -01 58 54.8 r 006
2013-06-04 20:55:51 C 16 32 24.15 -01 58 14.4 r 006
2013-06-04 21:55:20 C 16 33 13.37 -01 48 42.4 w J38
2013-06-04 21:55:44 C 16 33 13.70 -01 48 38.6 w J38
2013-06-04 21:56:08 C 16 33 14.02 -01 48 34.8 w J38
2013-06-04 21:57:10 C 16 33 14.84 -01 48 24.8 w J38
2013-06-04 21:58:35 C 16 33 15.99 -01 48 11.2 w J38
2013-06-04 21:59:13 C 16 33 16.51 -01 48 04.9 w J38
2013-06-04 21:59:50 C 16 33 17.00 -01 47 59.2 w J38
2013-06-04 22:00:39 C 16 33 17.65 -01 47 51.1 w J38
2013-06-04 22:00:50 C 16 33 17.82 -01 47 49.3 w J38
2013-06-04 22:03:25 C 16 33 19.90 -01 47 25.0 w J38
2013-06-04 22:03:37 C 16 33 20.06 -01 47 22.7 w J38
2013-06-04 22:04:25 C 16 33 20.70 -01 47 14.6 w J38
2013-06-04 22:05:14 C 16 33 21.37 -01 47 07.2 w J38
2013-06-04 22:05:38 C 16 33 21.69 -01 47 03.1 w J38
2013-06-04 22:06:06 C 16 33 22.07 -01 46 58.4 w J38
2013-06-04 22:07:07 C 16 33 22.89 -01 46 48.6 w J38
2013-06-04 22:08:46 C 16 33 24.25 -01 46 32.6 w J38
2013-06-04 22:20:01 n 16 33 31.93 -01 45 05.7 q Z92
2013-06-04 22:20:21 n 16 33 32.20 -01 45 02.8 q Z92
2013-06-04 22:20:34 n 16 33 32.38 -01 45 00.8 q Z92
2013-06-04 22:20:51 n 16 33 32.61 -01 44 58.3 q Z92
2013-06-04 22:21:06 n 16 33 32.82 -01 44 56.0 q Z92
2013-06-04 22:29:52 n 16 33 39.92 -01 43 30.2 q Z92
2013-06-04 22:30:08 n 16 33 40.13 -01 43 28.0 q Z92
2013-06-04 22:30:24 n 16 33 40.34 -01 43 25.8 q Z92
2013-06-04 22:30:40 n 16 33 40.56 -01 43 23.6 q Z92
2013-06-04 22:30:56 n 16 33 40.77 -01 43 21.4 q Z92
2013-06-04 22:39:57 n 16 33 48.08 -01 41 54.6 q Z92
2013-06-04 22:40:13 n 16 33 48.29 -01 41 51.8 q Z92
2013-06-04 22:40:28 n 16 33 48.50 -01 41 49.1 q Z92
2013-06-04 22:40:45 n 16 33 48.71 -01 41 46.3 q Z92
2013-06-04 22:40:58 n 16 33 48.89 -01 41 44.0 q Z92
2013-06-04 22:49:58 n 16 33 56.15 -01 40 17.9 q Z92
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)