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
2020-06-22 22:39:31 C 16 45 51.91 +12 12 01.9 – q 160
2020-06-22 22:51:13 C 16 45 51.70 +12 11 48.9 17.8 q 122
2020-06-22 23:02:55 C 16 45 51.33 +12 11 35.9 17.9 q 122
2020-06-23 09:49:24 C 16 45 34.066 +11 59 48.64 – U F52
2020-06-23 09:56:23 C 16 45 33.85 +11 59 40.7 – V T05
2020-06-23 10:01:52 C 16 45 33.68 +11 59 34.6 – V T05
2020-06-23 10:06:24 C 16 45 33.529 +11 59 29.54 – U F52
2020-06-23 10:10:38 C 16 45 33.40 +11 59 24.8 – V T05
2020-06-23 10:18:01 C 16 45 33.11 +11 59 16.4 – V T05
2020-06-23 10:23:21 C 16 45 33.006 +11 59 10.57 – U F52
2020-06-23 10:40:16 C 16 45 32.471 +11 58 51.56 – U F52
2020-06-23 11:01:41 C 16 45 31.81 +11 58 27.5 – V T05
2020-06-23 11:14:48 C 16 45 31.40 +11 58 12.6 – V T05
2020-06-23 22:37:14 C 16 45 14.08 +11 45 14.8 – q 160
2020-06-23 22:40:11 C 16 45 14.00 +11 45 11.3 – q 160
2020-06-23 22:43:09 C 16 45 13.91 +11 45 08.0 – q 160
2020-06-24 08:23:28 C 16 44 59.39 +11 34 06.3 – V T08
2020-06-24 08:30:49 C 16 44 59.16 +11 33 57.7 – V T08
2020-06-24 09:21:07 C 16 44 57.61 +11 32 59.1 – V T08
2020-06-24 09:35:55 C 16 44 57.17 +11 32 41.9 – V T08
2020-06-25 03:40:06 C 16 44 30.44 +11 11 11.8 – V V93
2020-06-25 04:24:01 C 16 44 29.17 +11 10 19.0 – V V93
2020-06-25 05:07:22 C 16 44 27.92 +11 09 26.8 – V V93
2020-06-25 05:09:09 C 16 44 28.26 +11 09 22.8 – – U65
2020-06-25 05:28:12 C 16 44 27.80 +11 08 59.9 – – U65
2020-06-25 05:46:42 C 16 44 27.28 +11 08 37.2 – – U65
2020-06-25 06:12:24 C 16 44 26.07 +11 08 09.8 – q H45
2020-06-25 06:13:48 C 16 44 26.03 +11 08 08.1 – q H45
2020-06-25 06:15:11 C 16 44 25.99 +11 08 06.4 – q H45
2020-06-25 06:16:25 C 16 44 25.94 +11 08 04.9 – q H45
2020-06-25 06:17:53 C 16 44 25.91 +11 08 03.2 – q H45
2020-06-25 09:27:10 C 16 44 21.52 +11 04 18.8 – V T08
2020-06-25 09:41:42 C 16 44 21.08 +11 04 01.1 – V T08
2020-06-25 09:46:22 C 16 44 20.95 +11 03 55.4 – V T08
2020-06-25 10:00:39 C 16 44 20.52 +11 03 37.9 – V T08
2020-06-25 21:54:31 C 16 44 03.78 +10 48 51.6 – V Z80
2020-06-25 21:59:32 C 16 44 03.65 +10 48 45.8 – V Z80
2020-06-25 22:04:32 C 16 44 03.52 +10 48 40.4 – V Z80
2020-06-25 22:39:22 C 16 44 02.39 +10 47 58.2 – q 160
2020-06-25 22:42:18 C 16 44 02.31 +10 47 54.6 – q 160
2020-06-25 22:45:15 C 16 44 02.23 +10 47 51.0 – q 160
2020-06-26 22:38:59 C 16 43 28.94 +10 17 34.6 – q 160
2020-06-26 22:42:07 C 16 43 28.85 +10 17 30.5 – q 160
2020-06-26 22:45:19 C 16 43 28.77 +10 17 26.3 – q 160
2020-06-27 23:01:24 C 16 42 56.65 +09 45 29.3 – V K83
2020-06-27 23:04:33 C 16 42 56.58 +09 45 24.9 – V K83
2020-06-27 23:07:42 C 16 42 56.49 +09 45 20.5 – V K83
2020-06-28 07:54:39 C 16 42 45.97 +09 33 36.6 – V T08
2020-06-28 07:59:18 C 16 42 45.86 +09 33 30.3 – V T08
2020-06-28 08:04:37 C 16 42 45.73 +09 33 23.2 – V T08