101869 (1999 MM)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6107336517 ± 3.16e-08
Semi-major axis (a)1.6242011118 AU ± 1.97e-09
Inclination (i)4.76544416° ± 8.51e-06
Long. of Asc. Node (Ω)110.91986363° ± 2.50e-05
Arg. of Perihelion (ω)268.83811916° ± 2.48e-05
Mean Anomaly (M)243.17677701° ± 1.30e-05
Mean Motion (n)0.4761596288°/day ± 8.67e-10
Perihelion dist (q)0.63224684 AU ± 5.13e-08
Aphelion dist (Q)2.61615539 AU ± 5.13e-08
Orbital Period2.06994929 yr ± 3.77e-09
Physical Parameters
H (abs. magnitude)19.48
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.494″
Uncertainty0
Orbit TypeApollo
MOID0.001640 AU
Observations Used187
Oppositions10
Arc Total1999-2019
First Observation Used1999-06-12
Last Observation Used2019-04-06
Observations (207)
Date Type RA Dec Mag Band Observatory
1999-06-12 07:15:47 c 20 14 46.68 -13 01 53.5 d 703
1999-06-12 07:41:01 c 20 14 49.79 -13 01 41.8 d 703
1999-06-12 08:06:20 c 20 14 52.95 -13 01 32.6 d 703
1999-06-12 08:31:41 c 20 14 55.89 -13 01 18.9 d 703
1999-06-20 07:45:54 C 20 46 03.04 -11 03 50.5 c 699
1999-06-20 08:04:13 C 20 46 06.93 -11 03 34.7 c 699
1999-06-20 08:22:33 C 20 46 10.83 -11 03 20.4 c 699
1999-06-20 22:50:44 C 20 49 23.65 -10 50 52.2 d 046
1999-06-20 22:53:05 C 20 49 24.35 -10 50 50.6 d 046
1999-06-20 22:54:23 C 20 49 24.65 -10 50 47.5 d 046
1999-06-20 22:55:50 C 20 49 24.86 -10 50 48.2 d 046
1999-06-21 01:12:52 C 20 49 55.46 -10 48 46.9 557
1999-06-21 01:16:37 C 20 49 56.22 -10 48 43.3 557
1999-06-21 01:20:20 C 20 49 57.03 -10 48 40.0 557
1999-06-21 15:10:36 C 20 53 13.66 -10 35 00.9 z 428
1999-06-21 15:15:15 C 20 53 14.84 -10 34 56.7 z 428
1999-06-21 16:51:33 C 20 53 37.37 -10 33 22.5 422
1999-06-21 16:52:24 C 20 53 37.58 -10 33 21.2 422
1999-06-21 16:54:55 C 20 53 38.16 -10 33 19.0 422
1999-06-22 16:11:26 C 20 59 35.90 -10 09 38.6 426
1999-06-22 16:14:29 C 20 59 36.70 -10 09 35.6 426
1999-06-22 16:18:25 C 20 59 37.71 -10 09 31.3 426
1999-06-23 00:02:07 C 21 01 43.66 -10 01 59.9 d 046
1999-06-23 00:11:18 C 21 01 46.17 -10 01 49.3 d 046
1999-06-23 00:12:43 C 21 01 46.54 -10 01 48.5 d 046
1999-06-23 00:14:41 C 21 01 47.18 -10 01 44.5 18.1 b 120
1999-06-23 00:17:14 C 21 01 47.74 -10 01 43.2 d 046
1999-06-23 00:17:55 C 21 01 47.98 -10 01 40.7 b 120
1999-06-23 00:21:29 C 21 01 48.92 -10 01 38.7 d 046
1999-06-23 00:22:02 C 21 01 49.22 -10 01 36.7 b 120
1999-06-23 00:25:03 C 21 01 49.91 -10 01 32.9 b 120
1999-06-23 01:44:59 C 21 02 11.36 -10 00 05.2 595
1999-06-23 01:47:34 C 21 02 12.11 -10 00 01.8 595
1999-06-23 01:50:34 C 21 02 12.88 -09 59 58.2 595
1999-06-23 01:53:35 C 21 02 13.62 -09 59 55.3 595
1999-06-23 16:29:23 C 21 06 25.64 -09 42 05.3 426
1999-06-23 16:32:33 C 21 06 26.53 -09 42 01.5 426
1999-06-23 16:35:39 C 21 06 27.42 -09 41 57.9 426
1999-06-23 23:33:31 C 21 08 33.17 -09 34 23.4 c 118
1999-06-23 23:36:01 C 21 08 33.92 -09 34 20.6 c 118
1999-06-23 23:39:34 C 21 08 35.10 -09 34 15.7 c 118
1999-06-24 00:47:37 C 21 08 55.37 -09 32 51.1 18.2 b 120
1999-06-24 00:50:47 C 21 08 56.30 -09 32 46.8 b 120
1999-06-24 00:54:49 C 21 08 57.41 -09 32 42.1 b 120
1999-06-24 15:48:29 C 21 13 41.17 -09 12 22.2 426
1999-06-24 15:52:31 C 21 13 42.45 -09 12 16.5 426
1999-06-24 15:58:36 C 21 13 44.37 -09 12 08.4 426
1999-06-25 00:28:36 C 21 16 33.92 -09 01 26.1 c 118
1999-06-25 00:30:19 C 21 16 34.47 -09 01 23.5 c 118
1999-06-25 00:33:38 C 21 16 35.68 -09 01 18.2 d 046