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
2004-11-06 12:19:52 C 02 27 42.90 -66 39 43.1 r 415
2004-11-06 12:30:31 C 02 27 40.86 -66 39 40.2 r 415
2004-11-06 12:36:42 C 02 27 39.52 -66 39 39.6 r 415
2004-11-06 12:41:30 C 02 27 38.51 -66 39 38.9 r 415
2004-11-06 12:52:39 C 02 27 36.35 -66 39 37.2 r 415
2004-11-07 11:45:16 C 02 23 00.73 -66 34 27.7 r E12
2004-11-07 11:53:49 C 02 22 58.84 -66 34 24.6 r E12
2004-11-07 12:02:21 C 02 22 57.31 -66 34 22.5 r E12
2004-11-07 12:10:55 C 02 22 55.66 -66 34 20.6 r E12
2004-11-12 12:03:45 C 01 59 26.76 -65 53 32.7 c 415
2004-11-12 12:10:01 C 01 59 25.55 -65 53 30.1 c 415
2004-11-17 11:54:48 C 01 37 38.70 -64 50 38.5 r 415
2004-11-17 12:02:13 C 01 37 37.22 -64 50 35.1 r 415
2004-12-18 11:37:03 C 00 17 10.47 -52 55 37.0 r 415
2004-12-18 11:43:16 C 00 17 10.18 -52 55 29.6 r 415
2004-12-20 13:34:56 C 00 14 43.18 -51 57 06.4 r 415
2004-12-20 13:43:13 C 00 14 42.91 -51 56 55.5 r 415
2004-12-30 11:46:46 C 00 06 24.84 -47 13 42.7 r 415
2004-12-30 11:52:55 C 00 06 24.65 -47 13 35.1 r 415
2005-01-02 12:37:47 C 00 04 49.21 -45 46 22.6 c 415
2005-01-02 23:06:19 C 00 04 37.29 -45 33 54.7 r I77
2005-01-02 23:09:01 C 00 04 37.05 -45 33 49.4 r I77
2005-01-11 11:54:55 C 00 02 08.44 -41 29 14.2 r 415
2005-01-11 12:04:07 C 00 02 08.38 -41 29 04.3 r 415
2005-01-12 12:18:17 C 00 02 00.30 -41 00 17.1 r 415
2005-01-13 11:09:17 C 00 01 54.13 -40 33 13.8 r 415
2005-05-12 19:49:00 C 01 09 00.48 +16 11 26.2 c 427
2005-05-12 20:20:21 C 01 09 01.45 +16 12 14.6 c 427
2005-05-15 18:20:39 C 01 11 34.30 +18 08 39.2 m 349
2005-05-15 18:25:24 C 01 11 34.51 +18 08 47.9 m 349
2005-05-16 18:23:17 C 01 12 27.89 +18 49 46.0 m 349
2005-05-16 18:25:41 C 01 12 28.00 +18 49 50.8 m 349
2005-05-16 18:28:05 C 01 12 28.09 +18 49 54.6 m 349
2005-05-25 18:09:20 C 01 20 58.19 +25 26 00.7 m 349
2005-05-25 18:11:07 C 01 20 58.25 +25 26 03.9 m 349
2005-05-25 18:12:53 C 01 20 58.36 +25 26 08.0 m 349
2005-05-27 18:00:06 C 01 23 00.67 +27 01 17.5 m 349
2005-05-27 18:03:43 C 01 23 00.85 +27 01 25.0 m 349
2005-05-27 18:07:19 C 01 23 01.04 +27 01 32.6 m 349
2005-05-31 18:05:21 C 01 27 20.57 +30 21 46.6 m 349
2005-05-31 18:08:59 C 01 27 20.75 +30 21 54.3 m 349
2005-05-31 18:12:35 C 01 27 20.91 +30 22 01.9 m 349
2005-06-04 03:15:27 C 01 31 17.66 +33 21 09.3 c J76
2005-06-04 03:17:38 C 01 31 17.72 +33 21 14.2 c J76
2005-06-04 03:18:11 C 01 31 17.67 +33 21 15.4 c J76
2005-06-05 02:20:24 C 01 32 28.49 +34 13 55.1 c 213
2005-06-05 02:21:01 C 01 32 28.54 +34 13 55.1 c 213
2005-06-05 02:21:39 C 01 32 28.56 +34 13 56.5 c 213
2005-06-05 17:32:40 C 01 33 16.08 +34 49 07.0 m 349
2005-06-05 17:35:06 C 01 33 16.22 +34 49 12.8 m 349