161P

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2026-03-24 (JD 2461123.5)
Eccentricity (e)0.8361420000
Semi-major axis (a)7.7206910862 AU
Inclination (i)95.78950000°
Long. of Asc. Node (Ω)1.47730000°
Arg. of Perihelion (ω)47.07340000°
Mean Anomaly (M)0.00000000°
Mean Motion (n)—°/day
Perihelion dist (q)1.26509700 AU
Aphelion dist (Q)14.17628517 AU
Orbital Period21.45281385 yr
Physical Parameters
H (abs. magnitude)8.50
G (slope)6.00
Orbit Solution
SourceMPC
Solution Date
RMS Residual—″
Uncertainty
Orbit TypeP
MOID0.435913 AU
Observations Used
Oppositions
Arc Total
First Observation Used
Last Observation Used
Observations (364)
Date Type RA Dec Mag Band Observatory
1983-11-04 11:13:12 A 21 53 37.39 -21 17 41.6 413
1983-11-04 11:28:13 A 21 53 35.13 -21 17 09.8 413
1983-11-23 10:37:24 A 21 11 07.22 -07 17 34.1 413
1983-11-23 10:57:25 A 21 11 06.13 -07 17 07.0 413
1983-11-27 02:17:32 A 21 06 38.49 -05 05 45.7 675
1983-11-28 03:49:01 A 21 05 29.38 -04 29 03.7 675
1983-11-30 02:12:00 A 21 03 32.87 -03 23 27.2 688
1983-11-30 02:42:12 A 21 03 31.83 -03 22 39.2 657
1983-11-30 03:00:59 A 21 03 30.72 -03 22 19.7 688
1983-12-01 01:46:01 A 21 02 38.04 -02 51 00.4 657
1983-12-01 22:37:23 A 21 01 51.66 -02 22 38.3 A 801
1983-12-03 17:18:33 A 21 00 23.51 -01 25 43.9 046
1983-12-03 17:31:52 A 21 00 23.08 -01 25 33.0 046
1983-12-04 02:24:30 A 21 00 06.17 -01 13 48.5 657
1983-12-04 17:30:13 A 20 59 37.19 -00 54 09.5 046
1983-12-04 17:43:25 A 20 59 36.95 -00 53 59.8 046
1983-12-05 02:55:00 A 20 59 19.81 -00 42 00.8 688
1983-12-05 03:11:59 A 20 59 19.34 -00 41 39.1 688
1983-12-07 17:04:24 A 20 57 34.14 +00 36 47.5 046
1983-12-07 17:14:15 A 20 57 34.04 +00 36 58.9 046
1983-12-08 02:03:29 A 20 57 20.07 +00 47 59.1 707
1983-12-08 10:24:17 A 20 57 06.86 +00 58 26.1 413
1983-12-08 10:44:17 A 20 57 06.85 +00 58 46.0 413
1983-12-08 23:00:17 A 20 56 48.27 +01 13 48.6 A 801
1983-12-25 18:56:00 A 20 50 31.56 +08 50 48.9 984
1983-12-29 01:31:29 A 20 49 56.15 +10 13 38.3 688
1983-12-29 01:55:30 A 20 49 56.19 +10 14 04.8 688
1984-01-01 23:03:59 A 20 49 25.56 +11 51 03.5 A 801
1984-01-04 18:29:59 A 20 49 10.20 +13 00 42.9 502
1984-01-07 22:51:18 A 20 48 57.84 +14 19 31.4 A 801
1984-01-09 22:47:53 A 20 48 52.88 +15 08 59.2 A 801
1984-02-11 13:33:03 A 20 49 42.71 +29 42 26.3 675
1984-02-25 22:56:04 A 20 49 04.52 +37 37 37.5 168
1984-02-25 23:34:35 A 20 49 04.31 +37 38 34.5 168
1984-02-26 00:31:34 A 20 49 03.96 +37 40 00.6 168
1984-02-26 01:32:05 A 20 49 03.61 +37 41 34.2 168
1984-02-27 01:44:15 A 20 48 55.03 +38 18 07.5 114
1984-03-01 15:37:29 A 20 48 14.94 +40 31 43.9 168
1984-03-02 01:20:29 A 20 48 09.20 +40 47 12.2 168
1984-03-02 19:26:30 A 20 47 58.43 +41 16 16.8 372
1984-03-03 00:31:27 A 20 47 55.01 +41 24 29.5 168
1984-03-03 01:10:35 A 20 47 54.53 +41 25 33.4 168
1984-03-04 00:00:34 A 20 47 38.88 +42 02 41.5 168
1984-03-04 00:54:05 A 20 47 38.23 +42 04 06.7 168
1984-03-04 15:29:34 A 20 47 26.91 +42 28 13.0 168
1984-03-04 19:16:29 A 20 47 24.68 +42 34 29.7 372
1984-03-08 01:07:59 A 20 46 14.40 +44 46 02.5 168
1984-03-09 01:10:39 A 20 45 47.67 +45 27 49.5 168
1984-03-11 12:40:21 A 20 44 32.42 +47 13 17.3 675
1984-03-21 23:44:26 A 20 35 18.75 +55 12 22.0 102