455554 (2004 MQ1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7048324132 ± 1.88e-08
Semi-major axis (a)2.4074175786 AU ± 6.15e-09
Inclination (i)11.12358932° ± 2.54e-06
Long. of Asc. Node (Ω)56.96645529° ± 1.98e-05
Arg. of Perihelion (ω)332.10353084° ± 1.97e-05
Mean Anomaly (M)241.36517585° ± 3.75e-06
Mean Motion (n)0.2638670338°/day ± 1.01e-09
Perihelion dist (q)0.71059164 AU ± 4.53e-08
Aphelion dist (Q)4.10424352 AU ± 4.64e-08
Orbital Period3.73531422 yr ± 1.43e-08
Physical Parameters
H (abs. magnitude)18.02
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.204″
Uncertainty0
Orbit TypeApollo
MOID0.122430 AU
Observations Used234
Radar Obs Used2
Oppositions8
Arc Total2004-2020
First Observation Used2004-06-17
Last Observation Used2020-03-05
Observations (270)
Date Type RA Dec Mag Band Observatory
2020-02-02 12:58:25 C 12 17 16.46 +17 05 54.9 V G96
2020-02-02 13:05:48 C 12 17 16.15 +17 05 58.3 V G96
2020-02-14 11:34:25 C 12 03 11.80 +19 17 11.1 V G96
2020-02-14 11:41:53 C 12 03 11.37 +19 17 14.2 V G96
2020-02-14 11:49:23 C 12 03 10.96 +19 17 17.1 V G96
2020-02-14 11:56:50 C 12 03 10.53 +19 17 20.7 V G96
2020-02-22 09:11:23 C 11 51 44.57 +20 37 45.9 U I41
2020-02-22 09:35:55 C 11 51 43.00 +20 37 55.8 U I41
2020-02-22 09:37:14 C 11 51 42.92 +20 37 56.3 U I41
2020-02-22 11:06:32 C 11 51 37.08 +20 38 31.3 U I41
2020-02-25 05:26:05 C 11 47 22.24 +21 03 58.4 U I41
2020-02-25 05:52:23 C 11 47 20.51 +21 04 08.3 U I41
2020-02-25 05:54:23 C 11 47 20.39 +21 04 09.0 U I41
2020-02-25 11:18:55 C 11 46 58.89 +21 06 09.1 U I41
2020-03-04 18:33:32 C 11 33 57.50 +22 10 28.3 q D29
2020-03-04 18:53:53 C 11 33 56.03 +22 10 34.0 q D29
2020-03-05 06:18:22 C 11 33 11.86 +22 13 39.4 V G96
2020-03-05 06:27:21 C 11 33 11.33 +22 13 42.1 V G96
2020-03-05 06:36:14 C 11 33 10.76 +22 13 44.2 V G96
2020-03-05 06:45:01 C 11 33 10.14 +22 13 46.6 V G96
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-12-26 18:24:00 168081.1579 1 Hz 2380 -1 -1
2015-12-27 18:17:00 158144012.82 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)