2019 UN12

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8461800794 ± 9.39e-09
Semi-major axis (a)2.2562223379 AU ± 3.43e-09
Inclination (i)5.19316385° ± 4.24e-06
Long. of Asc. Node (Ω)222.54238631° ± 4.52e-06
Arg. of Perihelion (ω)301.79587916° ± 5.93e-06
Mean Anomaly (M)264.59435262° ± 1.27e-06
Mean Motion (n)0.2908301546°/day ± 6.64e-10
Perihelion dist (q)0.34705194 AU ± 2.12e-08
Aphelion dist (Q)4.16539273 AU ± 2.21e-08
Orbital Period3.38900994 yr ± 7.74e-09
Physical Parameters
H (abs. magnitude)21.86
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.250″
Uncertainty0
Orbit TypeApollo
MOID0.011053 AU
Observations Used145
Radar Obs Used2
Oppositions1
Arc Total2019-2023
First Observation Used2019-10-23
Last Observation Used2023-07-16
Observations (149)
Date Type RA Dec Mag Band Observatory
2019-11-11 21:31:02 C 05 02 37.46 +12 55 52.6 V J95
2019-11-11 21:32:50 C 05 02 39.96 +12 55 23.1 V J95
2019-11-11 21:34:27 C 05 02 42.21 +12 54 55.8 V J95
2019-11-11 21:36:09 C 05 02 44.56 +12 54 27.5 V J95
2019-11-12 10:33:09 C 05 27 48.99 +07 49 36.4 o F65
2019-11-12 10:33:44 C 05 27 50.49 +07 49 16.9 o F65
2019-11-12 10:34:20 C 05 27 52.00 +07 48 57.3 o F65
2019-11-13 00:35:39 C 06 27 31.19 -05 05 15.4 V J95
2019-11-13 00:37:28 C 06 27 43.30 -05 07 53.7 V J95
2019-11-13 00:42:00 C 06 28 13.33 -05 14 25.0 V J95
2019-11-13 00:43:59 C 06 28 26.49 -05 17 16.5 V J95
2019-11-13 00:46:03 C 06 28 40.35 -05 20 17.1 V J95
2019-11-13 01:18:05 C 06 32 18.23 -06 07 38.3 V Z80
2019-11-13 01:23:05 C 06 32 53.12 -06 15 11.3 V Z80
2019-11-13 01:28:05 C 06 33 28.21 -06 22 46.6 V Z80
2019-11-13 01:41:39 C 06 35 04.56 -06 43 35.4 V Z80
2019-11-13 01:46:39 C 06 35 40.51 -06 51 20.4 V Z80
2019-11-13 01:51:39 C 06 36 16.64 -06 59 08.6 V Z80
2019-11-13 02:04:00 C 06 37 47.00 -07 18 33.8 V Z80
2019-11-13 02:09:00 C 06 38 23.99 -07 26 30.5 V Z80
2019-11-13 02:14:00 C 06 39 01.21 -07 34 29.5 V Z80
2023-07-06 03:49:54 C 12 16 34.75 +37 21 27.9 V I52
2023-07-06 04:01:29 C 12 16 53.92 +37 20 17.4 V I52
2023-07-06 04:13:04 C 12 17 13.15 +37 19 06.9 V I52
2023-07-06 04:24:41 C 12 17 32.40 +37 17 56.0 V I52
2023-07-06 22:48:01 C 12 47 42.024 +35 11 53.44 X Z84
2023-07-06 23:10:01 C 12 48 17.156 +35 09 02.51 X Z84
2023-07-06 23:32:01 C 12 48 52.268 +35 06 10.72 X Z84
2023-07-07 03:45:19 C 12 55 36.066 +34 33 29.48 V I52
2023-07-07 03:47:53 C 12 55 40.051 +34 33 08.64 V I52
2023-07-07 03:50:27 C 12 55 44.044 +34 32 48.26 V I52
2023-07-07 03:53:02 C 12 55 48.040 +34 32 26.95 V I52
2023-07-07 21:16:12 C 13 22 14.92 +32 02 46.0 X 033
2023-07-07 21:17:09 C 13 22 16.30 +32 02 37.3 X 033
2023-07-07 21:18:07 C 13 22 17.71 +32 02 28.4 X 033
2023-07-07 21:19:13 C 13 22 19.29 +32 02 19.3 X 033
2023-07-07 21:36:21 C 13 22 44.03 +32 00 00.1 V Z84
2023-07-10 22:01:28 C 14 48 23.24 +20 20 53.4 X 033
2023-07-10 22:02:18 C 14 48 24.00 +20 20 45.4 X 033
2023-07-10 22:03:07 C 14 48 24.77 +20 20 37.9 X 033
2023-07-10 22:04:09 C 14 48 25.68 +20 20 28.2 X 033
2023-07-14 23:36:17 C 15 53 03.95 +08 09 17.4 X 033
2023-07-14 23:37:22 C 15 53 04.45 +08 09 11.1 X 033
2023-07-14 23:38:27 C 15 53 04.94 +08 09 04.7 X 033
2023-07-15 07:20:16 C 15 56 37.855 +07 26 01.80 X F51
2023-07-15 07:38:03 C 15 56 45.542 +07 24 24.33 X F51
2023-07-16 08:35:32 C 16 07 05.748 +05 15 47.24 X F51
2023-07-16 08:51:05 C 16 07 11.590 +05 14 32.23 X F51
2023-07-16 09:06:32 C 16 07 17.347 +05 13 18.24 X F51
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2019-11-12 05:33:00 421434.9097 4 Hz 2380 -1 -1
2019-11-12 06:22:00 23644146.76 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)