138P

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2009-10-05 (JD 2455109.5)
Eccentricity (e)0.5297899426 ± 1.77e-07
Semi-major axis (a)3.6238266910 AU ± 5.75e-08
Inclination (i)10.07975403° ± 2.04e-05
Long. of Asc. Node (Ω)309.43819047° ± 5.68e-05
Arg. of Perihelion (ω)95.55196459° ± 9.66e-05
Mean Anomaly (M)219.80494712° ± 4.03e-05
Mean Motion (n)0.1428766132°/day ± 3.40e-09
Perihelion dist (q)1.70395976 AU ± 6.42e-07
Aphelion dist (Q)5.54369363 AU ± 6.48e-07
Orbital Period6.89844378 yr ± 1.64e-07
NGA Modelg(r)
A2-1.05194625e-10 ± 7.34e-13 AU/d²
Orbit Solution
SourceIAA
Solution Date2026-05-30
RMS Residual0.503″
Uncertainty0
Orbit TypeMBA
MOID0.747105 AU
Observations Used121
Oppositions29
Arc Total1991-2025
First Observation Used1991-11-13
Last Observation Used2025-09-15
Observations (126)
Date Type RA Dec Mag Band Observatory
1991-11-13 08:22:14 A 03 32 23.71 +44 17 23.4 675
1991-11-13 09:06:45 A 03 32 23.02 +44 17 17.4 675
1991-11-15 08:37:59 A 03 31 49.88 +44 11 01.0 675
1991-11-16 08:44:59 A 03 31 33.20 +44 07 05.4 675
1991-11-28 12:02:00 A 03 28 34.84 +42 42 28.1 372
1991-11-28 15:19:59 A 03 28 32.64 +42 41 09.0 372
1991-11-30 08:03:00 A 03 28 18.76 +42 24 34.4 675
1991-11-30 08:22:44 A 03 28 18.55 +42 24 24.6 675
1991-12-01 05:54:44 A 03 28 13.46 +42 15 15.5 675
1991-12-03 06:31:45 A 03 28 05.06 +41 53 41.4 675
1991-12-04 15:20:59 A 03 28 02.95 +41 38 33.0 372
1991-12-04 16:23:00 A 03 28 02.63 +41 38 04.2 372
1991-12-05 03:41:40 C 03 28 03.69 +41 32 41.4 801
1991-12-05 04:09:42 C 03 28 03.54 +41 32 29.0 801
1991-12-06 00:09:23 C 03 28 05.70 +41 22 52.0 801
1991-12-06 00:23:05 C 03 28 05.64 +41 22 42.8 801
1991-12-08 14:31:30 A 03 28 18.11 +40 52 14.3 372
1991-12-08 14:47:30 A 03 28 18.09 +40 52 04.7 372
1991-12-10 07:47:04 A 03 28 34.35 +40 31 12.1 657
1991-12-10 08:04:11 A 03 28 34.52 +40 31 03.8 657
1991-12-10 08:18:46 A 03 28 34.66 +40 30 54.4 657
1991-12-11 15:01:29 A 03 28 50.67 +40 15 09.1 372
1991-12-13 14:50:00 A 03 29 22.77 +39 50 05.8 372
1991-12-24 23:15:57 C 03 35 08.49 +37 25 34.7 950
1991-12-24 23:56:04 C 03 35 09.62 +37 25 14.9 950
1991-12-29 15:01:30 A 03 38 46.94 +36 28 08.2 372
1991-12-30 13:53:00 A 03 39 36.82 +36 16 41.7 372
1992-01-01 02:30:20 C 03 41 00.55 +35 58 33.0 801
1992-01-01 02:52:14 C 03 41 01.36 +35 58 22.0 801
1992-01-06 00:59:36 C 03 45 59.60 +35 02 05.7 801
1992-01-06 01:14:43 C 03 46 00.24 +35 01 58.7 801
1998-07-25 10:14:49 c 03 44 14.46 +28 47 29.5 691
1998-07-25 10:41:50 c 03 44 17.68 +28 47 42.9 691
1998-07-25 11:06:36 c 03 44 20.70 +28 47 54.6 691
1998-07-26 11:00:29 c 03 47 14.17 +28 59 13.6 691
1998-07-26 11:07:14 c 03 47 14.95 +28 59 16.5 691
1998-07-26 11:13:22 c 03 47 15.78 +28 59 19.5 691
1998-11-14 19:33:31 C 08 04 24.37 +30 55 48.5 867
1998-11-14 19:42:31 C 08 04 24.59 +30 55 46.9 867
1998-11-14 19:51:02 C 08 04 24.90 +30 55 45.3 867
1998-11-15 18:16:44 C 08 05 01.72 +30 52 30.8 360
1998-11-15 18:25:44 C 08 05 01.96 +30 52 29.9 360
1998-11-15 18:32:44 C 08 05 02.12 +30 52 28.4 360
1998-11-23 11:51:19 C 08 08 31.55 +30 27 01.7 693
1998-11-23 12:10:58 C 08 08 31.74 +30 26 59.1 693
1998-11-23 12:28:22 C 08 08 31.91 +30 26 56.8 693
1998-12-16 16:29:15 C 08 02 22.52 +29 20 02.0 360
1998-12-16 16:36:14 C 08 02 22.32 +29 20 00.9 360
1998-12-16 16:44:15 C 08 02 22.07 +29 20 00.0 360
1999-01-15 08:19:26 C 07 31 12.59 +27 23 36.9 693