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
2025-06-28 13:03:24 C 19 59 56.158 -27 56 19.00 V T05
2025-06-28 13:17:53 C 19 59 45.895 -27 57 06.59 V T05
2025-06-29 22:27:02 C 19 35 00.281 -29 47 05.10 V M22
2025-06-29 22:28:58 C 19 34 58.637 -29 47 11.76 V M22
2025-06-29 22:33:05 C 19 34 55.152 -29 47 25.55 V M22
2025-06-29 22:51:47 C 19 34 39.235 -29 48 28.62 V M22
2025-06-30 00:21:30 C 19 33 22.433 -29 53 25.94 V M22
2025-06-30 00:26:03 C 19 33 18.526 -29 53 40.78 V M22
2025-06-30 01:15:42 C 19 32 35.803 -29 56 21.98 V M22
2025-06-30 01:57:19 C 19 31 59.950 -29 58 35.36 V M22
2025-07-01 03:54:41 C 19 08 49.639 -31 21 16.88 V W68
2025-07-01 03:57:20 C 19 08 47.016 -31 21 25.13 V W68
2025-07-01 03:59:17 C 19 08 45.108 -31 21 31.03 V W68
2025-07-01 04:03:30 C 19 08 40.932 -31 21 44.10 V W68
2025-07-01 04:07:42 C 19 08 36.763 -31 21 57.13 V W68
2025-07-01 04:16:36 C 19 08 27.960 -31 22 24.31 V W68
2025-07-01 04:26:27 C 19 08 18.180 -31 22 54.52 V W68
2025-07-01 04:31:18 C 19 08 13.373 -31 23 09.46 V W68
2025-07-02 05:54:26 C 18 42 17.940 -32 33 08.10 V W68
2025-07-02 05:59:05 C 18 42 12.782 -32 33 19.15 V W68
2025-07-02 06:08:21 C 18 42 02.508 -32 33 41.15 V W68
2025-07-02 06:28:30 C 18 41 40.145 -32 34 28.56 V W68
2025-07-02 20:16:39 C 18 26 30.953 -33 05 15.72 V M22
2025-07-02 20:19:15 C 18 26 27.818 -33 05 21.34 V M22
2025-07-02 21:05:51 C 18 25 33.374 -33 06 59.11 V M22
2025-07-05 00:00:28 C 17 23 52.642 -33 55 15.74 V W68
2025-07-05 00:05:08 C 17 23 46.666 -33 55 15.64 V W68
2025-07-05 00:14:30 C 17 23 34.586 -33 55 15.35 V W68
2025-07-05 00:28:36 C 17 23 16.440 -33 55 14.56 V W68
2025-07-05 08:03:18 C 17 13 38.866 -33 53 50.10 V T05
2025-07-05 08:11:16 C 17 13 28.490 -33 53 45.46 V T05
2025-07-05 08:19:51 C 17 13 17.297 -33 53 40.60 V T05
2025-07-10 02:21:27 C 15 05 25.466 -28 30 13.82 V W68
2025-07-10 02:26:59 C 15 05 20.369 -28 29 50.17 V W68
2025-07-10 02:35:42 C 15 05 12.326 -28 29 12.91 V W68
2025-07-10 02:51:17 C 15 04 58.051 -28 28 07.54 V W68
2025-07-14 01:23:06 C 13 59 05.138 -22 05 02.87 V W68
2025-07-14 01:28:32 C 13 59 02.134 -22 04 43.07 V W68
2025-07-14 01:58:45 C 13 58 45.526 -22 02 48.48 V W68
2025-07-14 02:11:03 C 13 58 38.798 -22 02 01.72 V W68
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)