100085 (1992 UY4)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6186868211 ± 4.23e-09
Semi-major axis (a)2.6512968797 AU ± 4.06e-09
Inclination (i)2.63963416° ± 1.51e-06
Long. of Asc. Node (Ω)305.16940330° ± 7.34e-06
Arg. of Perihelion (ω)42.23676261° ± 7.87e-06
Mean Anomaly (M)249.67318505° ± 3.54e-06
Mean Motion (n)0.2283098954°/day ± 5.24e-10
Perihelion dist (q)1.01097444 AU ± 1.13e-08
Aphelion dist (Q)4.29161932 AU ± 1.30e-08
Orbital Period4.31705460 yr ± 9.91e-09
Physical Parameters
H (abs. magnitude)17.89
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.318″
Uncertainty0
Orbit TypeApollo
MOID0.024419 AU
Observations Used622
Radar Obs Used13
Oppositions20
Arc Total1979-2023
First Observation Used1979-06-29
Last Observation Used2023-02-09
Observations (664)
Date Type RA Dec Mag Band Observatory
1979-06-29 12:36:11 A 16 20 20.39 -27 24 45.8 413
1979-06-29 13:36:10 A 16 20 15.85 -27 24 27.6 413
1992-07-21 11:33:50 A 17 16 22.62 -27 35 49.8 413
1992-07-28 11:10:26 A 17 07 50.33 -26 09 35.6 413
1992-10-25 11:38:59 A 04 04 09.60 +36 16 18.6 17.2 675
1992-10-25 12:30:59 A 04 04 06.49 +36 15 35.2 675
1992-10-26 10:35:59 A 04 03 02.60 +35 58 26.7 675
1992-10-26 11:49:59 A 04 02 58.19 +35 57 24.9 675
1992-11-17 13:57:00 03 38 52.61 +29 49 13.4 17.0 z 402
1992-11-17 14:17:00 03 38 51.96 +29 49 02.5 z 402
1992-11-18 13:30:59 03 38 04.68 +29 35 14.3 z 402
1992-11-18 13:48:59 03 38 04.15 +29 35 06.4 z 402
1992-11-23 11:15:30 03 34 36.58 +28 29 15.9 17.0 F 372
1992-11-23 11:42:30 03 34 35.92 +28 29 07.0 F 372
1992-11-25 06:41:44 A 03 33 33.02 +28 06 45.4 17.5 675
1992-11-25 12:02:00 03 33 26.23 +28 04 01.2 17.0 F 372
1992-11-25 12:18:30 03 33 25.77 +28 03 54.4 F 372
1992-11-26 06:50:30 A 03 33 01.49 +27 54 36.5 675
1992-11-26 07:47:45 03 32 59.95 +27 54 08.6 675
1992-11-27 07:44:44 A 03 32 31.16 +27 42 23.5 675
1992-11-28 06:27:00 A 03 32 06.51 +27 31 33.0 675
1992-11-28 13:34:59 03 31 59.22 +27 28 11.5 m 367
1992-11-28 13:50:00 03 31 58.95 +27 28 05.3 m 367
1992-11-29 13:23:38 C 03 31 35.99 +27 17 11.3 z 900
1992-11-29 15:32:19 C 03 31 33.45 +27 16 12.0 z 376
1992-11-29 15:45:19 C 03 31 33.13 +27 16 06.7 z 376
1992-11-29 16:21:47 C 03 31 32.39 +27 15 49.3 z 900
1992-11-30 08:21:14 A 03 31 18.71 +27 08 39.2 675
1992-11-30 13:17:59 03 31 15.34 +27 06 26.8 m 367
1992-11-30 13:32:59 03 31 15.26 +27 06 21.0 m 367
1992-12-01 07:36:02 C 03 31 00.58 +26 58 22.4 z 658
1992-12-01 07:39:59 C 03 31 00.53 +26 58 20.9 z 658
1992-12-01 07:48:45 C 03 31 00.43 +26 58 17.5 z 658
1992-12-02 09:34:30 C 03 30 42.36 +26 47 17.8 z 658
1992-12-02 09:38:31 C 03 30 42.30 +26 47 15.5 z 658
1992-12-02 09:42:31 C 03 30 42.21 +26 47 14.1 z 658
1992-12-03 07:52:00 C 03 30 29.68 +26 38 05.5 z 658
1992-12-03 07:56:00 C 03 30 29.63 +26 38 03.9 z 658
1992-12-03 07:59:59 C 03 30 29.58 +26 38 02.2 z 658
1992-12-03 17:21:00 03 30 24.16 +26 34 15.2 17.5 F 372
1992-12-03 17:35:59 03 30 23.98 +26 34 09.1 F 372
1992-12-04 16:32:30 C 03 30 13.82 +26 25 04.5 z 376
1992-12-04 16:50:09 C 03 30 13.60 +26 24 59.4 z 376
1992-12-23 01:45:52 C 03 33 20.69 +24 20 45.9 801
1992-12-23 02:14:40 C 03 33 21.15 +24 20 40.5 801
1996-05-15 07:24:19 C 13 43 22.10 -15 27 31.5 695
1996-05-15 07:27:44 C 13 43 21.92 -15 27 30.9 695
1996-05-15 07:31:16 C 13 43 21.74 -15 27 30.0 695
1996-05-16 07:53:59 C 13 42 16.09 -15 20 48.9 695
1996-05-16 07:58:22 C 13 42 16.01 -15 20 46.7 695
Radar Observations (13)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2005-08-01 06:50:00 59398242 20 us 8560 -14 -14
2005-08-01 09:20:00 58918929 2 us 8560 -14 -14
2005-08-02 08:10:00 54735401 2 us 8560 -14 -14
2005-08-04 07:20:00 47331721 2 us 8560 -14 -14
2005-08-06 06:24:00 42212726.158 2 us 2380 -1 -1
2005-08-06 06:30:00 42204904.111 3 us 2380 -1 -1
2005-08-07 06:30:00 40744458.929 3 us 2380 -1 -1
2005-08-08 06:21:00 40167453.333 2 us 2380 -1 -1
2005-08-08 06:30:00 40166355.861 3 us 2380 -1 -1
2005-08-09 06:35:00 40501169.88 2 us 2380 -1 -1
2005-08-09 07:00:00 40513998.966 3 us 2380 -1 -1
2005-08-10 07:00:00 41743354.5 2 us 2380 -1 -1
2005-08-10 07:30:00 41776720.151 3 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)