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
1999-01-15 08:25:28 C 07 31 12.31 +27 23 35.5 693
1999-01-15 08:31:19 C 07 31 12.04 +27 23 34.1 693
1999-02-12 07:00:34 C 07 11 33.50 +24 49 15.3 693
1999-02-12 07:06:36 C 07 11 33.42 +24 49 13.9 693
1999-02-12 07:12:35 C 07 11 33.35 +24 49 12.1 693
2005-10-28 10:50:06 C 08 42 20.61 +24 55 50.1 r G96
2005-10-28 11:00:03 C 08 42 21.13 +24 55 47.4 r G96
2005-10-28 11:09:44 C 08 42 21.69 +24 55 44.9 r G96
2005-10-28 11:19:26 C 08 42 22.23 +24 55 41.7 r G96
2005-10-29 11:48:46 C 08 43 46.59 +24 48 30.9 r G96
2005-10-29 11:57:46 C 08 43 47.09 +24 48 28.5 r G96
2005-10-29 12:07:03 C 08 43 47.62 +24 48 25.9 r G96
2005-12-22 10:57:05 C 09 07 34.50 +20 30 32.8 o 568
2005-12-22 11:07:36 C 09 07 34.29 +20 30 32.0 o 568
2005-12-22 11:18:21 C 09 07 34.04 +20 30 31.3 o 568
2005-12-30 11:02:31 C 09 02 07.40 +20 16 40.0 r G96
2005-12-30 11:15:39 C 09 02 06.93 +20 16 39.5 r G96
2005-12-30 11:28:06 C 09 02 06.50 +20 16 38.6 r G96
2005-12-30 11:43:46 C 09 02 05.96 +20 16 37.5 r G96
2006-01-04 10:43:28 C 08 57 46.61 +20 10 09.7 c 691
2006-01-04 11:08:34 C 08 57 45.58 +20 10 08.7 c 691
2006-01-04 11:33:39 C 08 57 44.59 +20 10 07.1 c 691
2006-01-23 19:44:40 C 08 37 03.80 +19 50 03.1 r 215
2006-02-20 02:37:45 C 08 12 37.91 +19 07 44.4 c 691
2006-02-20 03:08:09 C 08 12 37.15 +19 07 42.2 c 691
2006-02-20 03:38:33 C 08 12 36.40 +19 07 40.1 c 691
2006-02-24 05:50:34 C 08 10 32.30 +18 58 58.7 r G96
2006-02-24 06:00:18 C 08 10 32.08 +18 58 58.0 r G96
2006-02-24 06:10:16 C 08 10 31.94 +18 58 57.3 r G96
2006-02-24 06:19:58 C 08 10 31.69 +18 58 56.5 r G96
2012-08-24 11:09:21 C 07 16 09.04 +27 50 24.7 c H06
2012-08-24 11:12:37 C 07 16 09.41 +27 50 24.4 c H06
2012-08-24 11:15:54 C 07 16 09.70 +27 50 23.6 c H06
2012-09-15 10:44:28 C 08 08 34.94 +25 08 36.0 c H06
2012-09-15 10:48:25 C 08 08 35.23 +25 08 34.7 c H06
2012-09-15 10:52:22 C 08 08 35.53 +25 08 33.1 c H06
2012-09-20 10:53:30 C 08 19 17.88 +24 25 57.9 c H06
2012-09-20 10:57:28 C 08 19 18.24 +24 25 57.1 c H06
2012-09-20 11:01:25 C 08 19 18.55 +24 25 55.7 c H06
2013-02-03 08:20:59 C 09 23 54.576 +12 52 26.63 L F51
2013-02-03 08:42:03 C 09 23 53.638 +12 52 27.72 L F51
2013-02-03 09:03:15 C 09 23 52.677 +12 52 28.88 L F51
2013-02-03 09:24:16 C 09 23 51.732 +12 52 29.85 L F51
2013-02-06 04:01:50 C 09 20 58.39 +12 55 47.0 o 691
2013-02-06 04:27:22 C 09 20 57.25 +12 55 49.2 o 691
2013-02-06 04:52:55 C 09 20 56.03 +12 55 50.0 o 691
2018-08-08 08:45:23 C 20 12 57.653 -20 51 46.27 U F51
2018-08-08 08:59:22 C 20 12 57.044 -20 51 45.85 U F51
2018-08-08 09:13:21 C 20 12 56.456 -20 51 45.75 U F51
2018-08-08 09:27:22 C 20 12 55.859 -20 51 45.73 U F51