128P

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2016-02-17 (JD 2457435.5)
Eccentricity (e)0.3214554998 ± 8.22e-08
Semi-major axis (a)4.5033596168 AU ± 3.38e-08
Inclination (i)4.36391215° ± 1.02e-05
Long. of Asc. Node (Ω)214.29384887° ± 8.48e-05
Arg. of Perihelion (ω)210.57891677° ± 9.84e-05
Mean Anomaly (M)326.09282825° ± 2.60e-05
Mean Motion (n)0.1031352991°/day ± 1.16e-09
Perihelion dist (q)3.05572990 AU ± 3.71e-07
Aphelion dist (Q)5.95098933 AU ± 3.73e-07
Orbital Period9.55663378 yr ± 1.08e-07
NGA Modelg(r)
A2-3.00005824e-09 ± 9.82e-11 AU/d²
Orbit Solution
SourceIAA
Solution Date2026-05-30
RMS Residual0.769″
Uncertainty0
Orbit TypeMBA
MOID2.068882 AU
Observations Used1083
Oppositions34
Arc Total1987-2025
First Observation Used1987-09-24
Last Observation Used2025-12-25
Observations (1161)
Date Type RA Dec Mag Band Observatory
1988-01-20 12:24:00 A 01 19 21.45 +07 58 06.4 381
1988-01-21 03:27:16 A 01 19 55.18 +08 00 54.5 B 691
1988-01-21 03:39:29 A 01 19 55.62 +08 00 56.8 B 691
1988-01-21 03:55:56 A 01 19 56.24 +08 01 00.1 B 691
1988-01-22 00:17:00 A 01 20 42.09 +08 04 48.8 A 801
1988-01-22 23:27:39 A 01 21 34.98 +08 09 14.7 A 801
1988-02-18 03:21:14 A 01 49 35.23 +10 30 20.6 675
1988-02-19 03:15:14 A 01 50 47.41 +10 36 19.1 675
1988-12-07 15:31:00 A 07 53 00.05 +15 18 46.1 897
1988-12-11 16:51:29 A 07 51 32.79 +15 16 31.5 877
1988-12-11 18:20:34 A 07 51 31.29 +15 16 33.0 877
1988-12-17 17:57:50 A 07 48 47.79 +15 15 29.8 897
1988-12-17 19:03:44 A 07 48 46.25 +15 15 31.1 897
1988-12-19 18:37:29 A 07 47 44.49 +15 15 43.4 372
1988-12-19 19:29:29 A 07 47 43.25 +15 15 43.0 372
1989-01-06 13:25:30 A 07 36 20.35 +15 29 02.9 897
1989-01-06 14:21:29 A 07 36 18.45 +15 29 03.9 897
1989-01-28 12:38:59 A 07 21 24.84 +16 03 52.7 897
1989-01-28 13:44:49 A 07 21 22.87 +16 04 02.9 897
1989-02-01 13:20:59 A 07 19 08.89 +16 11 11.2 897
1989-02-01 14:17:00 A 07 19 07.57 +16 11 17.7 897
1989-02-02 13:08:30 A 07 18 37.39 +16 12 58.5 887
1989-02-02 13:24:29 A 07 18 36.99 +16 13 00.0 887
1989-02-02 13:43:59 A 07 18 36.54 +16 13 00.9 887
1989-02-06 12:36:30 A 07 16 41.03 +16 20 10.9 897
1989-02-06 13:19:39 A 07 16 40.38 +16 20 11.2 897
1996-09-16 08:48:29 C 22 53 33.31 -02 18 04.9 568
1996-09-16 08:48:29 C 22 53 33.80 -02 18 00.4 568
1996-09-16 09:11:59 C 22 53 33.22 -02 18 04.5 568
1996-09-16 10:03:29 C 22 53 31.51 -02 18 18.0 568
1996-09-16 10:03:29 C 22 53 32.01 -02 18 13.2 568
1996-09-16 10:25:03 C 22 53 30.90 -02 18 23.0 568
1996-09-16 10:25:03 C 22 53 31.38 -02 18 18.2 568
1996-09-16 10:54:28 C 22 53 30.17 -02 18 28.6 568
1996-09-16 10:54:28 C 22 53 30.66 -02 18 24.1 568
1996-09-19 04:34:54 c 22 51 57.11 -02 30 28.5 691
1996-09-19 04:34:54 c 22 51 57.54 -02 30 23.8 691
1996-09-19 05:04:49 c 22 51 56.32 -02 30 33.7 691
1996-09-19 05:04:50 c 22 51 56.88 -02 30 29.5 691
1996-09-19 05:29:49 c 22 51 55.74 -02 30 38.2 691
1996-09-19 05:29:49 c 22 51 56.27 -02 30 33.9 691
1996-09-20 04:41:03 c 22 51 23.52 -02 34 52.2 691
1996-09-20 04:41:03 c 22 51 24.04 -02 34 47.7 691
1996-09-20 05:07:08 c 22 51 22.93 -02 34 57.6 691
1996-09-20 05:07:09 c 22 51 23.46 -02 34 52.4 691
1996-09-20 05:32:25 c 22 51 22.36 -02 35 01.8 691
1996-09-20 05:32:25 c 22 51 22.79 -02 34 57.4 691
1996-09-21 04:29:14 c 22 50 50.84 -02 39 11.9 691
1996-09-21 04:29:15 c 22 50 51.32 -02 39 07.6 691
1996-09-21 04:46:01 c 22 50 50.41 -02 39 15.1 691