137671 (1999 XP35)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1843338248 ± 2.60e-08
Semi-major axis (a)1.4347623822 AU ± 5.04e-10
Inclination (i)21.10357246° ± 3.94e-06
Long. of Asc. Node (Ω)263.43731958° ± 2.28e-06
Arg. of Perihelion (ω)198.31862216° ± 9.72e-06
Mean Anomaly (M)28.59839614° ± 6.81e-06
Mean Motion (n)0.5735117287°/day ± 3.02e-10
Perihelion dist (q)1.17028714 AU ± 3.73e-08
Aphelion dist (Q)1.69923762 AU ± 3.73e-08
Orbital Period1.71858087 yr ± 9.06e-10
Physical Parameters
H (abs. magnitude)18.73
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.238″
Uncertainty0
Orbit TypeAmor
MOID0.193203 AU
Observations Used495
Oppositions20
Arc Total1976-2024
First Observation Used1976-05-02
Last Observation Used2024-03-22
Observations (547)
Date Type RA Dec Mag Band Observatory
1976-05-02 10:47:49 11 10 44.27 -42 31 34.5 260
1976-05-02 11:42:50 11 10 46.79 -42 30 18.3 260
1985-09-17 03:17:59 19 36 17.06 +19 29 39.5 261
1999-12-06 10:16:50 C 08 59 58.48 +11 18 03.7 17.5 a 704
1999-12-06 10:40:05 C 08 59 58.95 +11 16 49.9 17.8 a 704
1999-12-06 11:00:37 C 08 59 59.36 +11 15 45.3 17.8 a 704
1999-12-06 11:24:40 C 08 59 59.86 +11 14 29.1 17.6 a 704
1999-12-06 11:45:29 C 09 00 00.28 +11 13 22.9 17.5 a 704
1999-12-07 07:12:59 C 09 00 31.34 +10 11 18.9 z 719
1999-12-07 07:17:19 C 09 00 31.63 +10 11 01.6 z 719
1999-12-07 08:39:55 C 09 00 33.23 +10 06 38.0 18.0 a 704
1999-12-07 09:01:03 C 09 00 33.56 +10 05 30.7 17.7 a 704
1999-12-07 09:22:12 C 09 00 33.99 +10 04 22.3 17.6 a 704
1999-12-07 09:43:23 C 09 00 34.37 +10 03 14.7 17.6 a 704
1999-12-07 10:04:31 C 09 00 34.74 +10 02 06.8 17.5 a 704
1999-12-07 10:25:56 C 09 00 35.42 +10 00 51.2 c 658
1999-12-07 10:29:38 C 09 00 35.50 +10 00 39.8 c 658
1999-12-07 10:33:03 C 09 00 35.56 +10 00 28.7 c 658
1999-12-07 10:39:57 C 09 00 35.49 +10 00 12.5 z 684
1999-12-07 10:43:07 C 09 00 35.53 +10 00 02.2 z 684
1999-12-07 17:47:25 C 09 00 45.63 +09 37 13.7 z 402
1999-12-07 17:49:14 C 09 00 45.63 +09 37 07.6 z 402
1999-12-07 17:51:04 C 09 00 45.67 +09 37 01.7 z 402
1999-12-07 17:52:53 C 09 00 45.71 +09 36 56.0 z 402
1999-12-07 23:26:57 C 09 00 54.10 +09 18 49.2 z 587
1999-12-07 23:32:28 C 09 00 54.18 +09 18 30.5 z 587
1999-12-08 02:05:21 C 09 00 56.75 +09 10 16.0 z 595
1999-12-08 02:09:59 C 09 00 56.82 +09 10 02.5 z 595
1999-12-08 02:21:07 C 09 00 56.95 +09 09 25.6 z 595
1999-12-08 10:35:50 C 09 01 07.60 +08 42 39.1 18.7 a 704
1999-12-08 10:41:28 C 09 01 07.88 +08 42 23.3 675
1999-12-08 10:45:35 C 09 01 07.93 +08 42 09.8 675
1999-12-08 10:53:51 C 09 01 07.79 +08 41 41.8 18.6 a 704
1999-12-08 11:11:55 C 09 01 08.05 +08 40 41.6 18.4 a 704
1999-12-08 11:29:54 C 09 01 08.30 +08 39 42.7 19.1 a 704
1999-12-08 11:47:53 C 09 01 08.57 +08 38 44.7 18.2 a 704
1999-12-09 08:47:52 C 09 01 34.54 +07 29 46.8 675
1999-12-09 08:53:07 C 09 01 34.64 +07 29 29.6 675
1999-12-13 10:33:56 c 09 02 46.47 +01 59 25.6 d 703
1999-12-13 10:51:27 c 09 02 46.42 +01 58 28.6 d 703
1999-12-13 11:08:53 c 09 02 46.24 +01 57 30.7 d 703
1999-12-13 11:26:24 c 09 02 46.34 +01 56 27.5 d 703
1999-12-15 18:33:14 C 09 02 56.46 -01 14 46.9 360
1999-12-15 18:36:30 C 09 02 56.44 -01 14 58.3 360
1999-12-15 18:39:29 C 09 02 56.41 -01 15 08.8 360
1999-12-16 08:49:38 C 09 02 56.02 -02 04 39.9 17.8 a 704
1999-12-16 09:10:50 C 09 02 55.84 -02 05 54.0 18.0 a 704
1999-12-16 09:31:54 C 09 02 55.65 -02 07 08.2 17.9 a 704
1999-12-16 09:53:06 C 09 02 55.42 -02 08 22.2 18.1 a 704
1999-12-16 10:14:19 C 09 02 55.25 -02 09 36.0 18.0 a 704