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
2010-06-05 22:22:19 C 17 55 35.79 -17 59 20.7 c A48
2010-06-05 22:22:44 C 17 55 34.90 -17 59 21.6 c A48
2010-06-05 22:23:08 C 17 55 33.94 -17 59 22.2 c A48
2010-06-05 22:23:33 C 17 55 33.04 -17 59 23.3 c A48
2010-06-05 22:23:57 C 17 55 32.08 -17 59 24.2 c A48
2010-06-11 02:05:49 C 15 13 29.09 -16 26 56.4 u H23
2010-06-11 02:26:44 C 15 13 14.79 -16 26 28.8 u H23
2010-06-11 02:47:35 C 15 13 00.58 -16 26 00.7 u H23
2010-06-11 22:49:32 C 15 01 11.99 -15 59 58.5 u J51
2010-06-11 23:02:46 C 15 01 04.48 -15 59 41.9 u J51
2010-06-11 23:11:36 C 15 00 59.48 -15 59 31.1 u J51
2010-06-12 02:14:21 C 14 59 26.48 -15 55 49.3 u H23
2010-06-12 02:33:55 C 14 59 15.73 -15 55 26.4 u H23
2010-06-12 02:53:24 C 14 59 05.04 -15 55 03.3 u H23
2010-06-16 03:55:19 C 14 24 57.30 -14 25 54.1 17.9 c 704
2010-06-16 04:10:39 C 14 24 53.34 -14 25 43.3 18.0 c 704
2010-06-16 04:26:05 C 14 24 49.41 -14 25 32.8 17.9 c 704
2010-06-16 04:41:29 C 14 24 45.47 -14 25 22.7 17.7 c 704
2010-06-16 04:56:46 C 14 24 41.57 -14 25 11.9 17.4 c 704
2010-06-17 04:10:39 C 14 19 42.24 -14 10 46.8 18.3 c 704
2010-06-17 04:25:28 C 14 19 38.99 -14 10 37.9 18.5 c 704
2010-06-17 04:40:17 C 14 19 35.77 -14 10 29.6 18.3 c 704
2010-06-17 04:55:05 C 14 19 32.54 -14 10 20.7 18.2 c 704
2010-06-17 05:10:13 C 14 19 29.28 -14 10 11.5 18.3 c 704
2014-06-27 14:18:46 C 01 03 21.696 +02 32 56.14 L F51
2014-06-27 14:22:34 C 01 03 23.044 +02 33 03.21 L F51
2014-06-27 14:26:22 C 01 03 24.369 +02 33 10.12 L F51
2014-06-27 14:30:10 C 01 03 25.685 +02 33 17.15 L F51
2015-05-25 02:19:16 S 22 18 40.992 -08 50 38.36 L C51
2015-05-25 03:53:42 S 22 18 23.810 -08 52 30.04 L C51
2015-05-28 08:57:48 C 22 02 28.27 -10 34 25.2 u 807
2015-05-28 09:02:29 C 22 02 27.11 -10 34 32.2 u 807
2015-05-28 09:07:22 C 22 02 25.90 -10 34 39.4 u 807
2015-05-28 09:11:49 C 22 02 24.77 -10 34 46.0 u 807
2015-05-28 09:16:46 C 22 02 23.53 -10 34 53.5 u 807
2015-06-02 13:49:17 C 21 25 13.831 -14 16 36.26 L F51
2015-06-02 14:03:11 C 21 25 08.353 -14 17 05.83 L F51
2015-06-02 14:17:07 C 21 25 02.871 -14 17 35.16 L F51
2015-06-14 07:20:23 C 18 25 24.65 -24 37 12.6 o 926
2015-06-14 07:24:16 C 18 25 21.19 -24 37 17.1 o 926
2015-06-14 07:28:07 C 18 25 17.80 -24 37 21.2 o 926
2015-06-15 10:12:12 C 18 02 22.478 -24 57 59.15 L F51
2015-06-15 10:28:50 C 18 02 07.860 -24 58 08.25 L F51
2015-06-15 10:45:46 C 18 01 52.903 -24 58 17.15 L F51
2015-06-15 11:03:17 C 18 01 37.481 -24 58 26.29 L F51
2020-06-15 12:12:54 C 20 19 20.02 -22 02 29.9 V T08
2020-06-15 12:17:33 C 20 19 17.87 -22 02 39.4 V T08
2020-06-15 12:24:51 C 20 19 14.38 -22 02 54.7 V T08
2020-06-15 12:38:08 C 20 19 08.13 -22 03 22.4 V T08
2020-06-16 11:49:53 C 20 08 12.12 -22 51 39.7 V T05
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)