2018 AJ

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3063747217 ± 1.28e-07
Semi-major axis (a)1.4208428661 AU ± 2.57e-07
Inclination (i)5.66655508° ± 2.72e-06
Long. of Asc. Node (Ω)303.56868365° ± 1.50e-06
Arg. of Perihelion (ω)195.43686013° ± 1.26e-05
Mean Anomaly (M)215.82256144° ± 4.55e-04
Mean Motion (n)0.5819600862°/day ± 1.58e-07
Perihelion dist (q)0.98553253 AU ± 2.55e-07
Aphelion dist (Q)1.85615320 AU ± 3.82e-07
Orbital Period1.69363210 yr ± 4.60e-07
Physical Parameters
H (abs. magnitude)24.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.280″
Uncertainty0
Orbit TypeApollo
MOID0.007875 AU
Observations Used100
Radar Obs Used3
Oppositions1
Arc Total2018-2018
First Observation Used2018-01-05
Last Observation Used2018-01-27
Observations (103)
Date Type RA Dec Mag Band Observatory
2018-01-05 04:08:18 C 05 20 42.13 +58 44 51.4 U G96
2018-01-05 04:19:07 C 05 20 43.18 +58 44 56.1 U G96
2018-01-05 04:33:15 C 05 20 44.54 +58 45 01.1 U G96
2018-01-05 04:40:43 C 05 20 45.24 +58 45 04.0 U G96
2018-01-05 05:02:35 C 05 20 47.24 +58 45 11.0 U G96
2018-01-05 05:08:23 C 05 20 47.82 +58 45 13.9 U G96
2018-01-05 05:14:08 C 05 20 48.35 +58 45 16.3 U G96
2018-01-05 07:06:24 C 05 20 58.88 +58 45 34.8 U I52
2018-01-05 07:10:00 C 05 20 59.10 +58 45 34.3 U I52
2018-01-05 07:13:13 C 05 20 59.50 +58 45 34.5 U I52
2018-01-05 07:16:26 C 05 20 59.89 +58 45 35.0 U I52
2018-01-05 07:28:16 C 05 21 01.11 +58 45 36.1 U I52
2018-01-05 07:31:28 C 05 21 01.43 +58 45 35.6 U I52
2018-01-05 07:34:41 C 05 21 01.72 +58 45 35.9 U I52
2018-01-05 07:37:55 C 05 21 02.05 +58 45 35.9 U I52
2018-01-06 02:31:40 C 05 24 37.65 +58 49 04.1 U I52
2018-01-06 02:37:06 C 05 24 38.37 +58 49 07.2 U I52
2018-01-06 02:42:52 C 05 24 39.19 +58 49 10.1 U I52
2018-01-06 02:48:19 C 05 24 39.90 +58 49 13.0 U I52
2018-01-06 03:37:55 C 05 24 45.12 +58 49 36.9 U H01
2018-01-06 03:43:33 C 05 24 45.80 +58 49 39.2 U H01
2018-01-06 03:57:37 C 05 24 47.48 +58 49 44.6 U H01
2018-01-06 04:07:50 C 05 24 48.69 +58 49 48.3 U H01
2018-01-06 21:19:44 C 05 28 06.53 +58 51 54.4 U J95
2018-01-06 21:24:14 C 05 28 07.07 +58 51 55.0 U J95
2018-01-06 21:30:57 C 05 28 08.12 +58 51 56.9 U J95
2018-01-14 02:51:13 C 06 31 31.18 +57 48 47.0 U I52
2018-01-14 02:51:24 C 06 31 31.23 +57 48 47.4 U I52
2018-01-14 02:52:56 C 06 31 32.03 +57 48 45.6 U I52
2018-01-14 02:53:07 C 06 31 32.11 +57 48 45.8 U I52
2018-01-14 05:28:14 C 06 32 50.79 +57 46 08.9 U 703
2018-01-14 05:35:58 C 06 32 54.55 +57 45 58.2 U 703
2018-01-14 05:43:42 C 06 32 58.44 +57 45 48.0 U 703
2018-01-17 04:56:02 C 07 29 01.08 +54 21 19.4 U 703
2018-01-17 05:03:46 C 07 29 07.57 +54 20 45.9 U 703
2018-01-17 05:11:30 C 07 29 14.05 +54 20 12.6 U 703
2018-01-17 05:19:14 C 07 29 20.52 +54 19 38.7 U 703
2018-01-18 04:24:09 C 07 53 35.91 +52 01 23.0 q G48
2018-01-18 04:25:09 C 07 53 36.86 +52 01 15.9 q G48
2018-01-18 04:26:10 C 07 53 37.92 +52 01 08.2 q G48
2018-01-18 04:27:10 C 07 53 38.90 +52 01 02.6 q G48
2018-01-18 04:28:12 C 07 53 39.96 +52 00 56.4 q G48
2018-01-19 21:29:47 C 08 43 49.42 +44 59 41.5 U Z80
2018-01-19 21:31:58 C 08 43 52.16 +44 59 12.8 U Z80
2018-01-19 21:34:10 C 08 43 54.85 +44 58 43.8 U Z80
2018-01-19 21:36:21 C 08 43 57.51 +44 58 15.2 U Z80
2018-01-19 21:38:32 C 08 44 00.25 +44 57 46.7 U Z80
2018-01-19 21:40:43 C 08 44 02.95 +44 57 17.5 U Z80
2018-01-19 21:42:54 C 08 44 05.65 +44 56 48.5 U Z80
2018-01-19 21:45:05 C 08 44 08.35 +44 56 19.4 U Z80
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2018-01-22 06:25:00 28075.5186 0.2 Hz 2380 -1 -1
2018-01-22 06:33:00 12517215.96 4 us 2380 -1 -1
2018-01-22 06:44:00 12509581.63 0.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)