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
2020-06-04 23:44:15 S 16 59 08.830 +16 57 37.48 – V C57
2020-06-04 23:44:15 s 1 -147004.14 6 +323684.70 7000.0 – C57
2020-06-05 00:14:15 S 16 59 08.261 +16 57 31.18 – V C57
2020-06-05 00:14:15 s 1 -147679.55 0 +322540.20 4690.0 – C57
2020-06-05 01:14:15 S 16 59 06.605 +16 57 20.27 – V C57
2020-06-05 01:14:15 s 1 -149017.21 8 +320223.50 3460.0 – C57
2020-06-05 01:44:15 S 16 59 06.014 +16 57 09.68 – V C57
2020-06-05 01:44:15 s 1 -149679.38 8 +319051.23 4480.0 – C57
2020-06-05 02:14:15 S 16 59 05.251 +16 56 59.93 – V C57
2020-06-05 02:14:15 s 1 -150337.05 1 +317869.66 3230.0 – C57
2020-06-05 04:44:15 S 16 59 01.308 +16 56 22.96 – V C57
2020-06-05 04:44:15 s 1 -153556.03 5 +311821.15 1850.0 – C57
2020-06-05 05:14:15 S 16 59 00.612 +16 56 17.02 – V C57
2020-06-05 05:14:15 s 1 -154185.60 9 +310583.11 6360.0 – C57
2020-06-05 06:14:15 S 16 58 58.954 +16 56 00.96 – V C57
2020-06-05 06:14:15 s 1 -155430.11 8 +308078.44 7910.0 – C57
2020-06-05 06:44:15 S 16 58 58.361 +16 55 49.48 – V C57
2020-06-05 06:44:15 s 1 -156044.94 3 +306811.76 4900.0 – C57
2020-06-05 07:14:15 S 16 58 57.574 +16 55 45.66 – V C57
2020-06-05 07:14:15 s 1 -156654.74 2 +305535.46 9330.0 – C57
2020-06-05 07:44:15 S 16 58 56.760 +16 55 34.68 – V C57
2020-06-05 07:44:15 s 1 -157259.45 9 +304249.52 1160.0 – C57
2020-06-05 08:14:15 S 16 58 55.795 +16 55 31.22 – V C57
2020-06-05 08:14:15 s 1 -157859.03 8 +302953.90 360.0 – C57
2020-06-05 08:44:15 S 16 58 55.267 +16 55 21.29 – V C57
2020-06-05 08:44:15 s 1 -158453.41 9 +301648.57 6910.0 – C57
2020-06-05 09:14:15 S 16 58 54.374 +16 55 13.01 – V C57
2020-06-05 09:14:15 s 1 -159042.54 6 +300333.50 760.0 – C57
2020-06-05 09:44:15 S 16 58 53.585 +16 55 06.28 – V C57
2020-06-05 09:44:15 s 1 -159626.35 8 +299008.65 1890.0 – C57
2020-06-05 15:44:15 S 16 58 43.872 +16 53 30.16 – V C57
2020-06-05 15:44:15 s 1 -166194.62 5 +282334.66 440.0 – C57
2020-06-05 16:14:15 S 16 58 43.181 +16 53 20.76 – V C57
2020-06-05 16:14:15 s 1 -166703.49 8 +280879.37 2960.0 – C57
2020-06-05 16:44:15 S 16 58 42.350 +16 53 13.85 – V C57
2020-06-05 16:44:15 s 1 -167206.12 0 +279413.78 2250.0 – C57
2020-06-05 17:14:15 S 16 58 41.642 +16 53 08.05 – V C57
2020-06-05 17:14:15 s 1 -167702.41 5 +277937.83 8260.0 – C57
2020-06-05 17:44:15 S 16 58 40.723 +16 52 55.81 – V C57
2020-06-05 17:44:15 s 1 -168192.30 7 +276451.49 950.0 – C57
2020-06-05 18:14:15 S 16 58 39.991 +16 52 51.24 – V C57
2020-06-05 18:14:15 s 1 -168675.71 7 +274954.72 280.0 – C57
2020-06-05 18:44:15 S 16 58 39.264 +16 52 43.75 – V C57
2020-06-05 18:44:15 s 1 -169152.56 8 +273447.48 6200.0 – C57
2020-06-05 19:14:15 S 16 58 38.407 +16 52 33.24 – V C57
2020-06-05 19:14:15 s 1 -169622.77 7 +271929.71 8680.0 – C57
2020-06-05 19:44:15 S 16 58 37.512 +16 52 25.79 – V C57
2020-06-05 19:44:15 s 1 -170086.26 3 +270401.38 7670.0 – C57
2020-06-05 20:14:15 S 16 58 36.802 +16 52 18.41 – V C57
2020-06-05 20:14:15 s 1 -170542.94 3 +268862.44 3120.0 – C57