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
2016-02-14 04:35:52 C 07 12 51.24 +50 08 52.0 q 703
2016-02-14 04:43:03 C 07 12 51.97 +50 08 43.3 q 703
2016-02-21 08:27:06 C 07 24 46.645 +46 58 44.65 L F51
2016-02-21 08:45:12 C 07 24 47.733 +46 58 26.23 L F51
2016-02-21 09:03:14 C 07 24 48.820 +46 58 07.82 L F51
2016-02-21 09:21:16 C 07 24 49.906 +46 57 49.34 L F51
2016-02-26 05:38:06 C 07 32 11.50 +45 06 36.4 q 703
2016-02-26 05:44:35 C 07 32 11.76 +45 06 31.2 q 703
2016-02-26 05:51:05 C 07 32 12.19 +45 06 26.5 q 703
2016-02-26 05:57:36 C 07 32 12.52 +45 06 19.7 q 703
2016-02-28 05:50:40 C 07 35 08.30 +44 23 46.0 R G45
2016-02-28 06:11:14 C 07 35 09.49 +44 23 28.2 R G45
2016-02-28 06:20:07 C 07 35 10.01 +44 23 20.1 R G45
2016-02-28 06:28:45 C 07 35 10.51 +44 23 12.2 R G45
2016-03-02 06:02:08 C 07 39 28.93 +43 22 41.8 R G45
2016-03-02 06:11:26 C 07 39 29.43 +43 22 33.6 R G45
2016-03-02 06:11:56 C 07 39 29.47 +43 22 33.7 R G45
2016-03-02 06:20:05 C 07 39 29.95 +43 22 26.5 R G45
2016-03-02 06:20:16 C 07 39 29.95 +43 22 26.1 R G45
2016-03-02 06:28:40 C 07 39 30.41 +43 22 19.1 R G45
2016-03-02 06:28:46 C 07 39 30.42 +43 22 19.5 R G45
2016-03-03 04:49:14 C 07 40 50.65 +43 04 07.6 q 703
2016-03-03 04:55:08 C 07 40 50.95 +43 04 01.8 q 703
2016-03-03 05:06:47 C 07 40 51.63 +43 03 51.8 q 703
2016-03-12 05:55:55 C 07 53 35.830 +40 21 12.16 L F51
2016-03-12 06:13:16 C 07 53 36.789 +40 21 00.03 L F51
2016-03-12 06:30:32 C 07 53 37.739 +40 20 48.01 L F51
2016-03-12 06:47:49 C 07 53 38.697 +40 20 35.99 L F51
2016-03-29 05:54:29 C 08 17 21.090 +36 04 46.37 L F51
2016-03-29 06:13:46 C 08 17 22.177 +36 04 35.40 L F51
2016-03-29 06:33:05 C 08 17 23.267 +36 04 24.30 L F51
2016-03-29 06:52:19 C 08 17 24.351 +36 04 13.30 L F51
2019-06-29 15:37:57 S 00 57 52.02 -18 40 09.2 L C51
2019-06-29 18:46:27 S 00 58 50.51 -18 35 53.8 L C51
2019-06-29 21:54:45 S 00 59 49.04 -18 31 38.2 L C51
2019-06-30 01:03:16 S 01 00 47.74 -18 27 19.5 L C51
2019-06-30 05:45:49 S 01 02 15.93 -18 20 49.4 L C51
2019-06-30 07:20:05 S 01 02 45.39 -18 18 37.9 L C51
2019-06-30 08:54:09 S 01 03 14.863 -18 16 27.98 L C51
2019-06-30 10:28:24 S 01 03 44.402 -18 14 14.60 L C51
2019-06-30 12:02:39 S 01 04 13.946 -18 12 02.34 L C51
2019-06-30 15:10:58 S 01 05 13.092 -18 07 36.12 L C51
2019-06-30 18:19:28 S 01 06 12.396 -18 03 08.35 L C51
2019-06-30 21:27:47 S 01 07 11.767 -17 58 38.42 L C51
2020-01-25 10:55:05 C 12 23 51.68 +15 40 32.6 V G96
2020-01-25 11:02:36 C 12 23 51.48 +15 40 35.7 V G96
2020-01-25 11:10:07 C 12 23 51.25 +15 40 38.7 V G96
2020-01-25 11:17:38 C 12 23 51.05 +15 40 41.8 V G96
2020-02-02 12:40:15 C 12 17 17.22 +17 05 46.5 V G96
2020-02-02 12:49:20 C 12 17 16.83 +17 05 50.7 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)