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
2020-06-15 02:30:11 C 16 51 20.38 +15 01 29.7 – q I15
2020-06-15 02:33:17 C 16 51 20.29 +15 01 27.6 – q I15
2020-06-15 04:32:08 C 16 51 16.93 +15 00 04.1 – V U71
2020-06-15 04:38:49 C 16 51 16.73 +14 59 59.4 – V U71
2020-06-16 10:32:07 C 16 50 21.532 +14 37 46.28 – U F52
2020-06-16 10:49:21 C 16 50 20.932 +14 37 32.84 – U F52
2020-06-16 11:06:30 C 16 50 20.336 +14 37 19.41 – U F52
2020-06-16 12:04:23 C 16 50 19.37 +14 36 49.8 17.6 q Q68
2020-06-16 12:13:27 C 16 50 19.04 +14 36 43.8 17.3 q Q68
2020-06-16 12:15:40 C 16 50 18.99 +14 36 41.6 17.5 q Q68
2020-06-16 14:10:41 C 16 50 14.98 +14 35 12.3 18.4 q Q68
2020-06-16 14:17:00 C 16 50 14.76 +14 35 07.0 18.2 q Q68
2020-06-17 09:46:13 C 16 49 39.82 +14 19 13.9 – V T08
2020-06-17 09:59:18 C 16 49 39.37 +14 19 02.9 – V T08
2020-06-17 10:14:02 C 16 49 38.86 +14 18 50.8 – V T08
2020-06-17 10:18:02 C 16 49 38.72 +14 18 47.7 – V T08
2020-06-17 23:23:00 C 16 49 15.34 +14 07 44.5 – V 160
2020-06-17 23:26:02 C 16 49 15.21 +14 07 42.0 – V 160
2020-06-17 23:29:00 C 16 49 15.11 +14 07 39.6 – V 160
2020-06-19 20:41:34 C 16 47 56.17 +13 27 12.4 – V 130
2020-06-19 20:43:12 C 16 47 56.11 +13 27 10.3 – V 130
2020-06-19 20:45:23 C 16 47 56.05 +13 27 08.5 – V 130
2020-06-19 20:47:35 C 16 47 55.99 +13 27 06.4 – V 130
2020-06-19 23:33:18 C 16 47 50.57 +13 24 30.5 – V 160
2020-06-19 23:36:13 C 16 47 50.46 +13 24 28.0 – V 160
2020-06-19 23:39:07 C 16 47 50.39 +13 24 25.5 – V 160
2020-06-20 21:29:27 C 16 47 13.74 +13 03 17.5 – q Z45
2020-06-20 21:32:50 C 16 47 13.63 +13 03 14.2 – q Z45
2020-06-20 21:36:14 C 16 47 13.52 +13 03 10.9 – q Z45
2020-06-20 21:39:37 C 16 47 13.41 +13 03 07.5 – q Z45
2020-06-20 21:43:00 C 16 47 13.30 +13 03 04.2 – q Z45
2020-06-20 21:49:46 C 16 47 13.08 +13 02 57.8 – q Z45
2020-06-21 02:15:30 C 16 47 05.73 +12 58 32.9 – q W46
2020-06-21 02:41:39 C 16 47 04.87 +12 58 06.6 – q W46
2020-06-21 02:55:54 C 16 47 04.43 +12 57 52.5 – q W46
2020-06-21 09:10:56 C 16 46 53.60 +12 51 39.1 – V T08
2020-06-21 10:01:13 C 16 46 51.93 +12 50 47.8 – V T08
2020-06-21 10:08:04 C 16 46 51.72 +12 50 41.0 – V T08
2020-06-21 10:29:28 C 16 46 51.00 +12 50 19.0 – V T08
2020-06-21 22:51:51 C 16 46 30.65 +12 37 26.8 – q 160
2020-06-21 22:54:48 C 16 46 30.55 +12 37 23.7 – q 160
2020-06-21 22:57:45 C 16 46 30.45 +12 37 20.6 – q 160
2020-06-21 23:07:11 n 16 46 30.36 +12 37 09.5 – V Z43
2020-06-21 23:27:52 n 16 46 29.69 +12 36 47.8 – V Z43
2020-06-21 23:36:04 n 16 46 29.45 +12 36 39.2 – V Z43
2020-06-21 23:45:10 n 16 46 29.18 +12 36 29.7 – V Z43
2020-06-21 23:53:10 n 16 46 28.93 +12 36 21.2 – V Z43
2020-06-22 22:33:32 C 16 45 52.10 +12 12 08.1 – q 160
2020-06-22 22:35:33 C 16 45 52.17 +12 12 05.8 18.2 q 122
2020-06-22 22:36:30 C 16 45 51.98 +12 12 05.1 – q 160