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
1996-09-21 04:46:01 c 22 50 50.92 -02 39 10.4 691
1996-09-21 05:02:34 c 22 50 50.07 -02 39 18.4 691
1996-09-21 05:02:35 c 22 50 50.54 -02 39 13.4 691
1996-12-04 01:50:18 c 22 49 19.19 -04 34 41.1 691
1996-12-04 01:50:18 c 22 49 19.65 -04 34 36.9 691
1996-12-04 02:13:21 c 22 49 19.76 -04 34 38.6 691
1996-12-04 02:13:22 c 22 49 20.15 -04 34 35.1 691
1996-12-04 02:34:53 c 22 49 20.27 -04 34 36.3 691
1996-12-04 02:34:54 c 22 49 20.69 -04 34 32.8 691
1997-07-14 11:22:50 C 03 25 59.83 +18 30 56.2 696
1997-07-14 11:25:28 C 03 26 00.00 +18 30 56.8 696
1997-08-11 00:09:02 C 03 59 53.33 +19 54 12.9 046
1997-08-11 00:11:34 C 03 59 53.49 +19 54 13.0 046
1997-08-11 00:15:59 C 03 59 53.71 +19 54 13.3 046
1997-08-28 17:34:41 C 04 17 55.65 +20 21 17.7 352
1997-08-28 18:46:29 C 04 17 58.38 +20 21 19.8 360
1997-08-28 18:52:44 C 04 17 58.60 +20 21 20.0 360
1997-09-02 00:18:14 C 04 21 40.28 +20 24 43.8 118
1997-09-02 00:34:24 C 04 21 40.85 +20 24 44.3 118
1997-09-02 00:42:19 C 04 21 41.13 +20 24 44.6 118
1997-09-04 01:45:17 C 04 23 22.51 +20 25 57.7 118
1997-09-04 01:59:39 C 04 23 22.99 +20 25 58.0 118
1997-09-06 00:11:07 C 04 24 54.83 +20 26 52.8 118
1997-09-06 00:30:21 C 04 24 55.44 +20 26 53.2 118
1997-09-06 00:45:52 C 04 24 55.93 +20 26 53.8 118
1997-09-08 01:20:46 C 04 26 28.48 +20 27 36.2 118
1997-09-08 01:30:50 C 04 26 28.80 +20 27 36.4 118
1997-09-08 01:44:22 C 04 26 29.23 +20 27 36.8 118
1997-09-10 18:14:15 C 04 28 25.79 +20 28 10.0 360
1997-09-10 18:20:30 C 04 28 25.96 +20 28 10.1 360
1997-09-12 01:54:48 C 04 29 20.22 +20 28 15.5 118
1997-09-12 02:00:56 C 04 29 20.37 +20 28 15.5 118
1997-09-12 02:06:17 C 04 29 20.54 +20 28 15.4 118
1997-09-13 01:48:14 C 04 30 00.09 +20 28 15.2 046
1997-09-13 01:51:19 C 04 30 00.20 +20 28 16.0 046
1997-09-13 02:03:29 C 04 30 00.49 +20 28 16.3 046
1997-09-16 02:05:48 C 04 31 54.19 +20 27 54.7 118
1997-09-16 02:15:44 C 04 31 54.41 +20 27 54.7 118
1997-09-16 02:25:20 C 04 31 54.67 +20 27 54.6 118
1997-09-17 00:20:00 C 04 32 27.31 +20 27 41.2 118
1997-09-17 00:35:22 C 04 32 27.66 +20 27 41.2 118
1997-09-18 00:19:56 C 04 33 01.95 +20 27 23.7 118
1997-09-18 00:36:46 C 04 33 02.34 +20 27 23.4 118
1997-09-19 02:08:53 C 04 33 37.85 +20 27 01.0 118
1997-09-19 02:18:22 C 04 33 38.07 +20 27 01.2 118
1997-09-24 17:47:55 C 04 36 24.28 +20 23 53.5 402
1997-09-24 17:53:56 C 04 36 24.31 +20 23 52.7 402
1997-09-24 18:01:34 C 04 36 24.46 +20 23 52.8 402
1997-09-25 03:24:32 C 04 36 34.42 +20 23 35.5 118
1997-09-25 03:35:13 C 04 36 34.62 +20 23 35.0 118