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
2020-06-16 12:23:48 C 20 07 54.72 -22 52 50.9 V T05
2020-06-16 12:28:25 C 20 07 52.33 -22 53 01.2 V T05
2020-06-16 12:36:59 C 20 07 47.99 -22 53 18.8 V T05
2020-06-20 15:54:19 C 19 09 29.35 -26 11 23.6 q Q11
2020-06-20 16:04:38 C 19 09 22.14 -26 11 41.5 q Q11
2020-06-20 16:09:46 C 19 09 18.56 -26 11 50.2 q Q11
2020-06-21 11:34:56 C 18 55 47.75 -26 43 29.9 V T05
2020-06-21 11:39:36 C 18 55 44.31 -26 43 36.9 V T05
2020-06-21 11:51:35 C 18 55 35.49 -26 43 55.3 V T05
2020-06-21 12:41:43 C 18 54 58.58 -26 45 10.2 V T05
2020-06-22 04:01:17 C 18 43 54.35 -27 06 23.4 q Y00
2020-06-22 04:03:07 C 18 43 52.96 -27 06 24.8 q Y00
2020-06-22 04:04:34 C 18 43 51.96 -27 06 26.9 q Y00
2020-07-09 07:21:52 C 14 38 26.89 -20 32 22.5 V T08
2020-07-09 07:26:31 C 14 38 25.39 -20 32 14.6 V T08
2020-07-09 07:34:29 C 14 38 22.86 -20 32 02.6 V T08
2020-07-09 07:51:47 C 14 38 17.39 -20 31 35.6 V T08
2020-07-11 03:22:16 S 14 26 13.812 -19 27 09.86 L C51
2020-07-11 04:56:31 S 14 25 49.764 -19 24 54.14 L C51
2025-05-29 13:29:58 C 22 02 08.625 -12 23 00.89 X F52
2025-05-29 13:46:40 C 22 02 08.269 -12 23 05.53 X F52
2025-05-29 14:03:22 C 22 02 07.918 -12 23 10.34 X F52
2025-05-29 14:20:07 C 22 02 07.551 -12 23 14.99 X F52
2025-06-08 10:33:43 C 21 54 22.687 -14 03 58.86 V I52
2025-06-08 10:38:23 C 21 54 22.381 -14 04 01.52 V I52
2025-06-08 10:43:03 C 21 54 22.079 -14 04 04.76 V I52
2025-06-08 10:47:43 C 21 54 21.769 -14 04 07.75 V I52
2025-06-09 10:19:45 C 21 52 56.766 -14 19 33.02 V I52
2025-06-09 10:28:49 C 21 52 56.111 -14 19 39.68 V I52
2025-06-09 10:37:54 C 21 52 55.466 -14 19 45.44 V I52
2025-06-09 10:46:56 C 21 52 54.793 -14 19 51.92 V I52
2025-06-10 09:38:53 C 21 51 22.792 -14 36 09.43 V I52
2025-06-10 09:51:23 C 21 51 21.776 -14 36 18.79 V I52
2025-06-10 10:03:52 C 21 51 20.776 -14 36 28.66 V I52
2025-06-10 10:16:25 C 21 51 19.782 -14 36 38.16 V I52
2025-06-13 08:27:15 C 21 45 25.042 -15 36 04.61 V I52
2025-06-13 08:37:46 C 21 45 23.861 -15 36 14.87 V I52
2025-06-13 08:57:35 C 21 45 21.780 -15 36 34.31 V I52
2025-06-13 09:08:08 C 21 45 20.610 -15 36 45.04 V I52
2025-06-14 10:10:09 C 21 42 41.605 -16 02 01.72 V I52
2025-06-14 10:15:14 C 21 42 40.979 -16 02 07.51 V I52
2025-06-14 10:18:02 C 21 42 40.666 -16 02 10.14 V I52
2025-06-14 10:20:49 C 21 42 40.313 -16 02 13.09 V I52
2025-06-14 10:25:54 C 21 42 39.676 -16 02 18.89 V I52
2025-06-17 08:04:13 C 21 33 26.856 -17 26 25.04 V I52
2025-06-17 08:18:53 C 21 33 24.451 -17 26 45.46 V I52
2025-06-17 08:33:29 C 21 33 22.021 -17 27 06.66 V I52
2025-06-17 09:03:04 C 21 33 17.042 -17 27 48.02 V I52
2025-06-18 09:25:38 C 21 29 12.923 -18 03 04.93 V I52
2025-06-18 09:29:42 C 21 29 12.156 -18 03 11.59 V I52
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)