IAA RAS IAA Minor Planet Database

1999 TM12

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4671797058 ± 2.00e+00
Semi-major axis (a)1.5980757663 AU ± 3.00e+00
Inclination (i)28.70788079° ± 4.00e+00
Long. of Asc. Node (Ω)198.91333222° ± 5.00e+00
Arg. of Perihelion (ω)250.79563195° ± 6.00e+00
Mean Anomaly (M)307.63346603° ± 8.87e-01
Mean Motion (n)0.4878736700°/day ± 1.37e+00
Perihelion dist (q)0.85148720 AU ± 3.57e+00
Aphelion dist (Q)2.34466740 AU ± 5.44e+00
Orbital Period2.02021070 yr ± 5.69e+00
Physical Parameters
H (abs. magnitude)21.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.996″
Uncertainty3
Orbit TypeApollo
MOID0.065829 AU
Observations Used43
Oppositions1
Arc Total1999-1999
First Observation Used—
Last Observation Used1999-10-17
Observations (46)
Date Type RA Dec Mag Band Observatory
1999-10-10 06:39:49 C 02 55 52.67 +17 13 43.7 18.2 a 704
1999-10-10 07:02:59 C 02 56 02.47 +17 09 21.6 18.1 a 704
1999-10-10 07:25:33 C 02 56 11.96 +17 05 04.6 18.6 a 704
1999-10-11 05:50:47 C 03 06 39.19 +12 28 44.2 18.2 a 704
1999-10-11 06:03:49 C 03 06 45.29 +12 25 52.4 18.4 a 704
1999-10-11 06:16:52 C 03 06 51.40 +12 23 00.2 18.4 a 704
1999-10-11 06:17:24 C 03 06 51.62 +12 22 53.8 18.1 a 704
1999-10-11 06:30:13 C 03 06 57.65 +12 20 03.6 18.7 a 704
1999-10-11 06:30:45 C 03 06 57.86 +12 19 57.0 18.4 a 704
1999-10-11 06:43:16 C 03 07 03.72 +12 17 11.0 18.2 a 704
1999-10-11 06:43:47 C 03 07 03.94 +12 17 04.4 18.1 a 704
1999-10-11 07:39:12 C 03 07 29.80 +12 04 47.6 18.3 a 704
1999-10-11 07:43:47 C 03 07 31.95 +12 03 46.3 18.3 a 704
1999-10-11 07:48:24 C 03 07 34.09 +12 02 44.7 18.4 a 704
1999-10-11 07:52:58 C 03 07 36.23 +12 01 43.5 18.3 a 704
1999-10-11 07:57:35 C 03 07 38.36 +12 00 41.8 18.3 a 704
1999-10-11 08:02:09 C 03 07 40.49 +11 59 40.6 18.3 a 704
1999-10-11 08:06:43 C 03 07 42.63 +11 58 39.2 18.5 a 704
1999-10-11 08:11:19 C 03 07 44.77 +11 57 38.5 18.4 a 704
1999-10-12 06:59:57 C 03 19 28.90 +06 30 00.3 – m 853
1999-10-12 07:01:12 C 03 19 29.38 +06 29 42.8 – m 853
1999-10-12 07:03:29 C 03 19 30.70 +06 29 05.6 – m 853
1999-10-12 07:03:57 C 03 19 30.92 +06 28 59.6 – m 853
1999-10-12 07:04:27 C 03 19 31.16 +06 28 50.9 – m 853
1999-10-12 08:03:35 C 03 20 01.12 +06 13 42.8 17.4 a 704
1999-10-12 08:23:15 C 03 20 11.23 +06 08 40.3 17.5 a 704
1999-10-12 08:42:54 C 03 20 21.34 +06 03 36.8 19.0 a 704
1999-10-12 09:02:36 C 03 20 31.46 +05 58 32.3 18.9 a 704
1999-10-12 09:22:15 C 03 20 41.59 +05 53 27.3 18.4 a 704
1999-10-12 21:45:50 C 03 27 38.49 +02 34 45.2 – – 611
1999-10-12 21:47:28 C 03 27 39.34 +02 34 17.1 – – 611
1999-10-12 23:07:13 C 03 28 23.26 +02 12 20.9 – d 046
1999-10-12 23:08:05 C 03 28 23.74 +02 12 08.5 – d 046
1999-10-12 23:08:53 C 03 28 24.22 +02 11 52.7 – d 046
1999-10-12 23:09:44 C 03 28 24.70 +02 11 38.9 – d 046
1999-10-12 23:10:42 C 03 28 25.22 +02 11 23.9 – d 046
1999-10-14 02:57:16 C 03 45 05.26 -05 55 39.0 – c 118
1999-10-14 02:58:56 C 03 45 06.33 -05 56 09.9 – c 118
1999-10-16 15:07:58 C 04 27 44.94 -24 49 59.0 – – 413
1999-10-16 15:10:12 C 04 27 46.61 -24 50 39.9 – – 413
1999-10-16 15:13:05 C 04 27 48.77 -24 51 33.4 – – 413
1999-10-17 15:25:03 C 04 47 20.08 -31 59 05.9 – – 413
1999-10-17 15:26:56 C 04 47 21.60 -31 59 37.9 – – 413
1999-10-17 15:28:50 C 04 47 23.13 -32 00 10.0 – – 413
1999-10-17 18:32:23 C 04 49 50.62 -32 51 13.3 – – 413
1999-10-17 18:34:22 C 04 49 52.24 -32 51 45.6 – – 413