2021 ME1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1058668409 ± 1.86e-07
Semi-major axis (a)1.1276528153 AU ± 2.62e-07
Inclination (i)15.87581459° ± 1.36e-05
Long. of Asc. Node (Ω)96.49454640° ± 1.21e-06
Arg. of Perihelion (ω)143.95399255° ± 8.11e-05
Mean Anomaly (M)272.15048107° ± 5.23e-04
Mean Motion (n)0.8230934836°/day ± 2.87e-07
Perihelion dist (q)1.00827177 AU ± 3.14e-07
Aphelion dist (Q)1.24703386 AU ± 3.58e-07
Orbital Period1.19746578 yr ± 4.17e-07
Physical Parameters
H (abs. magnitude)24.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.449″
Uncertainty0
Orbit TypeApollo
MOID0.008977 AU
Observations Used116
Radar Obs Used5
Oppositions1
Arc Total2021-2021
First Observation Used2021-06-19
Last Observation Used2021-07-03
Observations (116)
Date Type RA Dec Mag Band Observatory
2021-06-27 23:08:41 C 20 39 07.21 -19 33 03.0 V 089
2021-06-27 23:11:50 C 20 39 09.05 -19 35 58.5 V 089
2021-06-27 23:14:59 C 20 39 10.93 -19 38 55.3 V 089
2021-06-27 23:18:08 C 20 39 12.68 -19 41 51.9 V 089
2021-06-27 23:21:17 C 20 39 14.52 -19 44 47.0 V 089
2021-06-27 23:24:26 C 20 39 16.38 -19 47 43.5 V 089
2021-06-27 23:33:53 C 20 39 21.83 -19 56 31.0 V 089
2021-06-27 23:37:02 C 20 39 23.67 -19 59 26.3 V 089
2021-07-02 14:22:36 C 22 24 16.92 -70 58 33.3 V 474
2021-07-02 14:24:23 C 22 24 18.63 -70 58 50.8 V 474
2021-07-02 14:25:17 C 22 24 19.48 -70 58 59.6 V 474
2021-07-02 14:26:10 C 22 24 20.36 -70 59 08.3 V 474
2021-07-03 14:49:57 C 22 52 44.06 -74 08 55.3 V 474
2021-07-03 14:50:50 C 22 52 44.93 -74 09 01.2 V 474
2021-07-03 14:51:44 C 22 52 45.87 -74 09 07.4 V 474
2021-07-03 14:52:37 C 22 52 46.71 -74 09 13.3 V 474
Radar Observations (5)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-06-27 05:50:00 71228.621 10 Hz 8560 -14 -14
2021-06-27 06:00:00 69391.224 10 Hz 8560 -14 -14
2021-06-27 06:20:00 12065709.51 10 us 8560 -14 -14
2021-06-27 06:40:00 12056774.19 2 us 8560 -14 -14
2021-06-27 07:10:00 12044431.17 0.5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)