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
2004-06-17 13:12:00 C 20 46 59.52 -37 35 14.2 r E12
2004-06-17 13:26:49 C 20 47 00.47 -37 35 29.3 r E12
2004-06-17 13:41:38 C 20 47 01.52 -37 35 46.4 r E12
2004-06-17 13:56:30 C 20 47 02.48 -37 36 02.0 r E12
2004-06-17 15:31:11 C 20 47 08.68 -37 37 44.0 r 413
2004-06-17 15:33:51 C 20 47 08.84 -37 37 46.9 r 413
2004-06-17 15:36:30 C 20 47 09.02 -37 37 49.7 r 413
2004-06-19 02:43:42 C 20 49 37.37 -38 16 27.9 c 950
2004-06-19 02:45:50 C 20 49 37.52 -38 16 30.5 c 950
2004-06-19 02:47:55 C 20 49 37.65 -38 16 32.7 c 950
2004-06-19 08:10:38 C 20 50 00.96 -38 22 37.6 c 651
2004-06-19 08:13:28 C 20 50 01.21 -38 22 41.1 c 651
2004-06-19 08:16:17 C 20 50 01.49 -38 22 43.9 c 651
2004-06-19 10:11:40 C 20 50 09.28 -38 24 56.5 c 673
2004-06-19 10:14:39 C 20 50 09.51 -38 25 00.5 c 673
2004-06-19 10:19:10 C 20 50 09.79 -38 25 05.3 c 673
2004-06-19 10:23:30 C 20 50 10.11 -38 25 10.7 c 673
2004-06-24 16:50:08 C 20 59 58.43 -41 06 12.1 r 428
2004-06-24 16:53:35 C 20 59 58.69 -41 06 16.9 r 428
2004-06-24 16:56:59 C 20 59 58.96 -41 06 21.8 r 428
2004-06-25 16:13:12 C 21 01 58.84 -41 40 05.0 r 428
2004-06-25 16:16:07 C 21 01 59.08 -41 40 09.2 r 428
2004-06-25 16:19:05 C 21 01 59.38 -41 40 14.1 r 428
2004-06-25 16:21:59 C 21 01 59.59 -41 40 18.3 r 428
2004-06-26 04:56:03 C 21 03 06.17 -41 59 09.6 r 859
2004-06-26 04:59:26 C 21 03 06.48 -41 59 13.9 r 859
2004-06-26 05:02:51 C 21 03 06.69 -41 59 18.9 r 859
2004-06-27 05:19:57 C 21 05 19.24 -42 36 51.9 r 859
2004-06-27 05:23:09 C 21 05 19.43 -42 36 56.6 r 859
2004-07-05 04:59:41 C 21 27 21.97 -48 38 24.9 r 859
2004-07-05 05:02:02 C 21 27 22.31 -48 38 30.4 r 859
2004-07-05 05:04:24 C 21 27 22.59 -48 38 35.8 r 859
2004-07-05 05:06:45 C 21 27 22.92 -48 38 41.3 r 859
2004-07-12 17:46:22 C 22 03 59.251 -56 34 24.11 r 413
2004-07-12 17:48:21 C 22 03 59.790 -56 34 30.03 r 413
2004-07-12 17:50:21 C 22 04 00.345 -56 34 36.16 r 413
2004-07-13 12:48:15 C 22 09 43.48 -57 33 01.4 r 474
2004-07-13 12:50:55 C 22 09 44.28 -57 33 09.8 r 474
2004-07-13 12:53:24 C 22 09 45.05 -57 33 18.0 r 474
2004-07-15 16:50:04 C 22 28 20.255 -60 21 14.40 r 413
2004-07-15 16:55:33 C 22 28 22.403 -60 21 32.63 r 413
2004-07-16 19:16:02 C 22 39 57.639 -61 49 44.38 r 413
2004-07-16 19:17:52 C 22 39 58.478 -61 49 50.60 r 413
2004-07-16 19:19:41 C 22 39 59.317 -61 49 56.56 r 413
2004-07-19 13:28:29 C 23 18 40.06 -65 32 17.2 c 322
2004-07-19 13:35:45 C 23 18 45.78 -65 32 47.6 c 322
2004-07-19 13:43:03 C 23 18 50.80 -65 33 10.5 c 322
2004-07-19 13:50:19 C 23 18 55.88 -65 33 35.6 c 322
2004-07-20 17:16:15 C 23 40 09.669 -67 01 33.36 r 413
2004-07-20 17:18:04 C 23 40 11.158 -67 01 38.93 r 413
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)