437844 (1999 MN)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6653473346 ± 2.00e+00
Semi-major axis (a)0.6740395680 AU ± 3.00e+00
Inclination (i)2.03172774° ± 4.00e+00
Long. of Asc. Node (Ω)81.38643524° ± 5.00e+00
Arg. of Perihelion (ω)9.20346724° ± 6.00e+00
Mean Anomaly (M)107.50856911° ± 7.62e-06
Mean Motion (n)1.7810831244°/day ± 1.19e+01
Perihelion dist (q)0.22556914 AU ± 1.68e+00
Aphelion dist (Q)1.12251000 AU ± 5.17e+00
Orbital Period0.55338590 yr ± 3.69e+00
NGA Modelr2
A24.15125214e-06 AU/d²
Physical Parameters
H (abs. magnitude)21.01
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-27
RMS Residual0.348″
Uncertainty0
Orbit TypeAten
MOID0.005953 AU
Observations Used264
Oppositions21
Arc Total1999-2025
First Observation Used1999-06-22
Last Observation Used2025-07-14
Observations (290)
Date Type RA Dec Mag Band Observatory
2004-05-27 10:33:16 C 22 15 00.04 -11 27 20.3 d 291
2004-05-27 10:44:27 C 22 15 00.42 -11 27 20.3 d 291
2004-05-27 10:55:05 C 22 15 00.87 -11 27 19.4 d 291
2004-05-28 10:45:56 C 22 16 01.33 -11 25 38.1 d 291
2004-05-28 10:56:28 C 22 16 01.76 -11 25 37.7 d 291
2004-05-28 11:07:01 C 22 16 02.16 -11 25 35.2 d 291
2004-06-26 00:39:08 C 22 50 11.90 -13 17 51.3 c 246
2004-06-26 00:40:24 C 22 50 12.02 -13 17 52.8 c 246
2004-06-26 00:41:31 C 22 50 12.11 -13 17 54.2 c 246
2004-06-26 00:44:33 C 22 50 12.33 -13 17 56.2 c 246
2004-06-26 00:45:53 C 22 50 12.41 -13 17 56.7 c 246
2004-06-28 09:03:15 C 22 55 26.76 -14 08 41.5 d 291
2004-06-28 09:13:38 C 22 55 27.72 -14 08 52.9 d 291
2004-06-28 09:36:48 C 22 55 29.81 -14 09 18.7 d 291
2004-07-05 07:18:27 C 23 29 10.57 -20 14 45.3 r 859
2004-07-05 07:19:43 C 23 29 11.04 -20 14 50.7 r 859
2004-07-05 07:20:58 C 23 29 11.56 -20 14 56.4 r 859
2004-07-05 07:22:14 C 23 29 11.96 -20 15 01.4 r 859
2005-06-06 04:07:05 C 10 57 22.06 +11 44 48.1 r 734
2005-06-06 04:20:40 C 10 57 33.94 +11 43 07.5 r 734
2005-06-07 02:55:26 C 11 15 49.06 +09 09 09.5 r 734
2005-06-07 02:58:50 C 11 15 51.43 +09 08 47.1 r 734
2005-06-07 03:01:38 C 11 15 53.45 +09 08 29.9 r 734
2005-06-07 03:36:06 C 11 16 18.43 +09 05 05.3 r 448
2005-06-07 03:38:45 C 11 16 20.34 +09 04 48.6 r 448
2005-06-07 03:41:22 C 11 16 22.18 +09 04 31.6 r 448
2005-06-07 03:46:52 C 11 16 26.04 +09 03 57.4 r 448
2005-07-04 09:25:18 C 13 22 52.24 -09 28 19.8 r E12
2005-07-04 09:33:02 C 13 22 52.78 -09 28 22.5 r E12
2005-07-04 09:40:45 C 13 22 53.22 -09 28 27.5 r E12
2005-07-04 09:48:28 C 13 22 53.61 -09 28 31.2 r E12
2010-05-30 14:08:57 S 22 35 34.843 -02 22 07.46 L C51
2010-05-30 15:44:07 S 22 34 07.483 -02 29 18.82 L C51
2010-05-31 02:12:58 C 22 23 58.99 -03 21 55.3 u J95
2010-05-31 02:20:16 C 22 23 51.35 -03 22 32.9 u J95
2010-05-31 02:27:42 C 22 23 43.53 -03 23 10.5 u J95
2010-06-03 02:03:08 C 20 34 35.72 -11 27 19.3 u J95
2010-06-03 02:08:51 C 20 34 23.55 -11 28 04.9 u J95
2010-06-03 02:14:35 C 20 34 11.34 -11 28 50.9 u J95
2010-06-04 00:54:29 C 19 43 22.98 -14 21 59.5 u J95
2010-06-04 00:57:59 C 19 43 14.53 -14 22 24.8 u J95
2010-06-04 01:01:41 C 19 43 05.64 -14 22 51.2 u J95
2010-06-04 23:48:40 C 18 48 04.56 -16 40 23.2 v 204
2010-06-04 23:50:11 C 18 48 00.83 -16 40 30.5 v 204
2010-06-04 23:51:41 C 18 47 57.13 -16 40 37.7 v 204
2010-06-04 23:53:11 C 18 47 53.42 -16 40 45.4 v 204
2010-06-04 23:54:36 C 18 47 51.28 -16 40 59.2 u J95
2010-06-04 23:54:41 C 18 47 49.73 -16 40 52.4 v 204
2010-06-04 23:58:37 C 18 47 41.41 -16 41 19.2 u J95
2010-06-05 00:03:02 C 18 47 30.56 -16 41 40.9 u J95
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2004-07-22 18:36:00 -248029.89 1 Hz 2380 -1 -1
2004-07-23 18:45:00 112608631.7 4 us 2380 -1 -1
2005-05-30 18:10:00 82102.17 0.5 Hz 2380 -1 -1
2005-05-31 19:10:00 51957109.5 0.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)