2021 UQ9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3507974462 ± 6.16e-05
Semi-major axis (a)1.5292757678 AU ± 1.49e-04
Inclination (i)11.05337202° ± 1.63e-03
Long. of Asc. Node (Ω)51.62793662° ± 6.82e-04
Arg. of Perihelion (ω)39.10404879° ± 1.73e-04
Mean Anomaly (M)24.24297461° ± 1.09e-01
Mean Motion (n)0.5211749888°/day ± 7.63e-05
Perihelion dist (q)0.99280973 AU ± 1.35e-04
Aphelion dist (Q)2.06574180 AU ± 2.23e-04
Orbital Period1.89116190 yr ± 2.77e-04
Physical Parameters
H (abs. magnitude)23.86
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.336″
Uncertainty3
Orbit TypeApollo
MOID0.050287 AU
Observations Used31
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-30
Last Observation Used2021-12-09
Observations (35)
Date Type RA Dec Mag Band Observatory
2021-10-30 05:59:02 C 01 13 38.67 -19 18 00.0 V G96
2021-10-30 06:06:00 C 01 13 37.79 -19 17 50.0 V G96
2021-10-31 08:58:24 C 01 10 30.963 -18 43 59.14 U F51
2021-10-31 09:15:09 C 01 10 28.751 -18 43 37.12 U F51
2021-10-31 09:31:52 C 01 10 26.514 -18 43 14.92 U F51
2021-10-31 09:48:34 C 01 10 24.277 -18 42 52.57 U F51
2021-10-31 12:26:41 C 01 10 03.608 -18 39 16.79 V F51
2021-10-31 12:27:36 C 01 10 03.464 -18 39 15.52 V F51
2021-11-01 05:34:55 C 01 08 04.14 -18 15 58.2 o 691
2021-11-01 05:47:50 C 01 08 02.40 -18 15 40.0 o 691
2021-11-03 11:14:54 C 01 01 25.86 -16 51 37.4 V 474
2021-11-03 11:21:41 C 01 01 24.88 -16 51 24.7 V 474
2021-11-03 11:28:29 C 01 01 23.99 -16 51 14.1 V 474
2021-11-03 11:35:17 C 01 01 22.96 -16 51 01.5 V 474
2021-11-06 06:13:47 C 00 52 43.541 -14 46 50.61 U F51
2021-11-06 06:29:57 C 00 52 41.108 -14 46 17.46 U F51
2021-11-06 06:46:05 C 00 52 38.685 -14 45 44.46 U F51
2021-11-06 07:02:15 C 00 52 36.243 -14 45 11.33 U F51
2021-11-09 03:49:53 C 00 43 06.74 -12 07 40.5 o 691
2021-11-09 04:23:31 C 00 43 01.35 -12 06 15.7 o 691
2021-11-09 04:57:10 C 00 42 56.02 -12 04 50.8 o 691
2021-11-09 05:12:31 C 00 42 53.55 -12 04 12.9 V V06
2021-11-09 05:22:02 C 00 42 52.07 -12 03 49.5 V V06
2021-11-09 05:23:57 C 00 42 51.76 -12 03 44.2 V V06
2021-11-28 01:49:44 C 23 27 21.45 +19 03 22.9 V I52
2021-11-28 01:51:57 C 23 27 20.96 +19 03 35.3 V I52
2021-11-28 01:55:09 C 23 27 20.25 +19 03 52.4 V I52
2021-11-28 01:55:34 C 23 27 20.13 +19 03 55.2 V I52
2021-11-29 21:45:59 S 23 18 22.548 +23 05 49.92 L C51
2021-11-30 15:01:28 S 23 14 45.010 +24 41 43.66 L C51
2021-11-30 18:09:36 S 23 14 05.098 +24 59 10.18 L C51
2021-11-30 21:17:55 S 23 13 25.015 +25 16 37.24 L C51
2021-12-09 02:15:10 C 22 26 14.49 +42 47 00.0 V 291
2021-12-09 02:19:30 C 22 26 13.21 +42 47 20.6 V 291
2021-12-09 02:23:51 C 22 26 11.89 +42 47 41.7 V 291