IAA RAS IAA Minor Planet Database

261P

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2016-09-02 (JD 2457633.5)
Eccentricity (e)0.4176552663 ± 1.56e-07
Semi-major axis (a)3.5275392809 AU ± 1.26e-07
Inclination (i)6.06075136° ± 4.93e-06
Long. of Asc. Node (Ω)294.65758653° ± 6.22e-05
Arg. of Perihelion (ω)62.20619423° ± 8.98e-05
Mean Anomaly (M)208.47559926° ± 6.33e-06
Mean Motion (n)0.1487662749°/day ± 7.97e-09
Perihelion dist (q)2.05424392 AU ± 5.55e-07
Aphelion dist (Q)5.00083464 AU ± 5.78e-07
Orbital Period6.62533416 yr ± 3.55e-07
NGA Modelg(r)
A14.61724411e-09 ± 2.97e-10 AU/d²
A28.45109204e-10 ± 3.04e-12 AU/d²
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.729″
Uncertainty0
Orbit TypeMBA
MOID1.056033 AU
Observations Used1200
Oppositions18
Arc Total2005-2026
First Observation Used2005-07-03
Last Observation Used2026-01-05
Observations (1278)
Date Type RA Dec Mag Band Observatory
2019-09-03 03:40:01 C 03 30 41.00 +27 01 56.1 – Q I72
2019-09-04 01:08:11 C 03 31 36.37 +27 07 11.0 – q I81
2019-09-04 01:13:22 C 03 31 36.63 +27 07 12.4 – q I81
2019-09-04 01:18:35 C 03 31 36.80 +27 07 13.3 – q I81
2019-09-04 09:54:50 C 03 31 58.40 +27 09 20.5 – V 703
2019-09-04 10:01:41 C 03 31 58.70 +27 09 22.8 – V 703
2019-09-04 10:08:31 C 03 31 59.01 +27 09 24.4 – V 703
2019-09-04 10:15:23 C 03 31 59.47 +27 09 26.1 – V 703
2019-09-06 10:36:39 C 03 33 57.90 +27 20 54.0 – q H47
2019-09-06 10:41:33 C 03 33 58.04 +27 20 54.4 – q H47
2019-09-06 10:50:24 C 03 33 58.44 +27 20 56.9 – q H47
2019-09-06 18:07:44 C 03 34 15.79 +27 22 36.8 – m 349
2019-09-06 18:18:56 C 03 34 16.19 +27 22 39.2 – m 349
2019-09-08 03:31:41 C 03 35 33.01 +27 30 09.0 – q I81
2019-09-08 03:36:53 C 03 35 33.22 +27 30 10.4 – q I81
2019-09-08 03:42:06 C 03 35 33.43 +27 30 11.9 – q I81
2019-09-10 03:11:05 C 03 37 17.73 +27 40 36.7 – q J22
2019-09-10 03:16:55 C 03 37 17.91 +27 40 37.5 – q J22
2019-09-10 03:22:39 C 03 37 18.12 +27 40 38.9 – q J22
2019-09-11 04:32:09 C 03 38 10.33 +27 45 57.6 – V G40
2019-09-11 04:40:07 C 03 38 10.58 +27 45 59.2 – V G40
2019-09-11 04:48:25 C 03 38 10.86 +27 46 00.9 – V G40
2019-09-11 14:45:48 C 03 38 30.84 +27 48 05.1 – V T08
2019-09-11 14:51:34 C 03 38 31.17 +27 48 06.6 – V T08
2019-09-11 14:59:32 C 03 38 31.39 +27 48 08.2 – V T08
2019-09-11 15:13:46 C 03 38 31.77 +27 48 10.8 – V T08
2019-09-12 01:08:57 C 03 38 51.75 +27 50 10.0 – t A71
2019-09-12 01:16:39 C 03 38 52.07 +27 50 11.8 – t A71
2019-09-12 01:24:21 C 03 38 52.34 +27 50 12.9 – t A71
2019-09-21 10:27:45 C 03 44 54.29 +28 30 41.4 – q H47
2019-09-21 10:38:40 C 03 44 54.44 +28 30 43.0 – q H47
2019-09-22 00:21:39 C 03 45 11.23 +28 32 47.3 – V C47
2019-09-22 00:26:58 C 03 45 11.31 +28 32 48.1 – V C47
2019-09-22 00:32:17 C 03 45 11.44 +28 32 49.1 – V C47
2019-09-22 00:42:54 C 03 45 11.62 +28 32 51.1 – V C47
2019-09-22 00:50:53 C 03 45 11.77 +28 32 51.8 – V C47
2019-09-23 09:23:24 C 03 45 47.93 +28 37 41.2 – q H47
2019-09-23 09:43:51 C 03 45 48.29 +28 37 45.0 – q H47
2019-09-23 10:01:07 C 03 45 48.51 +28 37 47.7 – q H47
2019-09-25 11:58:20 C 03 46 36.86 +28 44 40.8 – V T05
2019-09-25 12:05:50 C 03 46 36.99 +28 44 42.1 – V T05
2019-09-25 12:10:29 C 03 46 37.01 +28 44 42.8 – V T05
2019-09-25 12:33:23 C 03 46 37.19 +28 44 45.2 – V T05
2019-09-27 00:37:06 C 03 47 06.23 +28 49 16.1 – q I81
2019-09-27 00:42:19 C 03 47 06.28 +28 49 17.0 – q I81
2019-09-27 00:47:31 C 03 47 06.35 +28 49 17.9 – q I81
2019-09-29 13:19:49 C 03 47 43.84 +28 56 19.6 – V T05
2019-09-29 13:27:45 C 03 47 43.83 +28 56 19.9 – V T05
2019-09-29 13:33:16 C 03 47 43.93 +28 56 20.6 – V T05
2019-09-29 13:47:38 C 03 47 44.04 +28 56 23.0 – V T05