IAA RAS IAA Minor Planet Database

477885 (2011 JT9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5185451094 ± 4.29e-08
Semi-major axis (a)2.6951360659 AU ± 1.24e-08
Inclination (i)19.05131166° ± 4.05e-06
Long. of Asc. Node (Ω)118.94512835° ± 8.01e-06
Arg. of Perihelion (ω)185.31023648° ± 1.22e-05
Mean Anomaly (M)69.13277656° ± 3.51e-06
Mean Motion (n)0.2227620637°/day ± 1.53e-09
Perihelion dist (q)1.29758644 AU ± 1.16e-07
Aphelion dist (Q)4.09268569 AU ± 1.17e-07
Orbital Period4.42456973 yr ± 3.05e-08
Physical Parameters
H (abs. magnitude)17.25
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.316″
Uncertainty0
Orbit TypeAmor
MOID0.281108 AU
Observations Used817
Oppositions14
Arc Total2007-2025
First Observation Used2007-11-11
Last Observation Used2025-12-15
Observations (1102)
Date Type RA Dec Mag Band Observatory
2020-05-25 04:44:16 S 17 04 59.194 +17 25 25.25 – V C57
2020-05-25 04:44:16 s 1 -178610.06 7 +94691.630 800.0 – C57
2020-05-25 05:14:16 S 17 04 58.272 +17 25 28.63 – V C57
2020-05-25 05:14:16 s 1 -177902.55 4 +92068.484 6040.0 – C57
2020-05-25 05:44:16 S 17 04 57.612 +17 25 33.71 – V C57
2020-05-25 05:44:16 s 1 -177166.53 0 +89430.617 1510.0 – C57
2020-05-25 06:14:16 S 17 04 56.935 +17 25 36.26 – V C57
2020-05-25 06:14:16 s 1 -176401.31 5 +86778.045 6680.0 – C57
2020-05-25 06:44:16 S 17 04 56.215 +17 25 42.56 – V C57
2020-05-25 06:44:16 s 1 -175606.20 3 +84110.797 1020.0 – C57
2020-05-25 22:46:45 C 17 04 09.75 +17 26 33.1 – V 160
2020-05-25 22:49:46 C 17 04 09.68 +17 26 33.1 – V 160
2020-05-25 22:52:46 C 17 04 09.61 +17 26 33.1 – V 160
2020-05-26 06:56:38 C 17 04 00.61 +17 26 57.9 – U I41
2020-05-26 07:38:57 C 17 03 59.66 +17 26 59.9 – U I41
2020-05-26 11:18:36 C 17 03 55.24 +17 27 11.7 – V T05
2020-05-26 11:23:13 C 17 03 55.12 +17 27 11.5 – V T05
2020-05-26 11:33:36 C 17 03 54.89 +17 27 11.9 – V T05
2020-05-26 11:48:07 C 17 03 54.54 +17 27 12.7 – V T05
2020-05-27 07:28:50 C 17 03 31.66 +17 27 37.2 – U I41
2020-05-27 08:57:25 C 17 03 29.56 +17 27 38.3 – U I41
2020-05-27 13:03:50 C 17 03 24.215 +17 27 42.70 – U F51
2020-05-27 13:21:22 C 17 03 23.796 +17 27 42.59 – U F51
2020-05-27 13:38:59 C 17 03 23.379 +17 27 42.51 – U F51
2020-05-28 07:07:16 C 17 03 02.45 +17 27 32.5 – U I41
2020-05-28 09:10:56 C 17 02 59.38 +17 27 30.3 – U I41
2020-05-29 00:17:28 C 17 02 40.01 +17 26 59.4 – V A16
2020-05-29 00:39:16 C 17 02 39.42 +17 26 58.2 – V A16
2020-05-29 01:07:37 C 17 02 38.77 +17 26 56.9 – V A16
2020-05-29 22:00:51 C 17 02 11.45 +17 25 46.9 – V Z43
2020-05-29 22:15:52 C 17 02 11.04 +17 25 46.4 – V Z43
2020-05-29 22:44:16 S 17 02 03.914 +17 21 43.31 – V C57
2020-05-29 22:44:16 s 1 +116963.10 8 +303253.90 5910.0 – C57
2020-05-29 23:07:10 C 17 02 09.73 +17 25 43.3 – V Z43
2020-05-30 09:14:16 S 17 01 53.273 +17 20 38.90 – V C57
2020-05-30 09:14:16 s 1 +99490.851 0 +329644.44 700.0 – C57
2020-05-30 10:14:16 S 17 01 52.092 +17 20 34.37 – V C57
2020-05-30 10:14:16 s 1 +97748.506 0 +331912.23 580.0 – C57
2020-05-30 10:44:16 S 17 01 51.662 +17 20 30.37 – V C57
2020-05-30 10:44:16 s 1 +96872.877 0 +333030.62 5290.0 – C57
2020-05-31 00:19:46 C 17 01 34.32 +17 23 30.6 – V A16
2020-05-31 00:22:53 C 17 01 34.20 +17 23 30.2 – V A16
2020-05-31 00:40:59 C 17 01 33.68 +17 23 28.3 – V A16
2020-05-31 00:52:31 C 17 01 33.43 +17 23 27.5 – V A16
2020-05-31 00:55:16 C 17 01 33.29 +17 23 27.1 – V A16
2020-05-31 01:14:16 S 17 01 37.104 +17 18 53.96 – V C57
2020-05-31 01:14:16 s 1 +70397.708 0 +361136.12 710.0 – C57
2020-05-31 23:14:16 S 17 01 12.749 +17 16 09.26 – V C57
2020-05-31 23:14:16 s 1 +27680.055 0 +388944.07 4370.0 – C57
2020-05-31 23:50:40 C 17 01 00.23 +17 20 38.9 – V 130