415029 (2011 UL21)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6537389222 ± 3.55e-09
Semi-major axis (a)2.1223846854 AU ± 1.41e-09
Inclination (i)34.88596290° ± 1.62e-06
Long. of Asc. Node (Ω)275.31456377° ± 3.69e-07
Arg. of Perihelion (ω)284.98018604° ± 9.13e-07
Mean Anomaly (M)177.74570784° ± 2.01e-07
Mean Motion (n)0.3187690303°/day ± 3.18e-10
Perihelion dist (q)0.73489921 AU ± 7.55e-09
Aphelion dist (Q)3.50987016 AU ± 7.89e-09
Orbital Period3.09197629 yr ± 3.09e-09
Physical Parameters
H (abs. magnitude)15.93
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.218″
Uncertainty0
Orbit TypeApollo
MOID0.015855 AU
Observations Used3235
Radar Obs Used3
Oppositions24
Arc Total1989-2024
First Observation Used1989-10-29
Last Observation Used2024-09-28
Observations (4304)
Date Type RA Dec Mag Band Observatory
2024-07-02 03:36:52 V 15 43 50.16 +02 30 26.9 V 270
2024-07-02 03:36:52 v 1 285.03192 +40.20012 270
2024-07-02 03:53:45 V 15 44 04.29 +02 32 53.0 V 270
2024-07-02 03:53:45 v 1 285.03192 +40.20012 270
2024-07-02 20:00:43 C 15 56 38.91 +04 38 44.5 V C40
2024-07-02 20:03:32 C 15 56 40.84 +04 39 04.3 V C40
2024-07-02 20:06:19 C 15 56 42.76 +04 39 23.7 V C40
2024-07-02 20:09:08 C 15 56 44.67 +04 39 43.4 V C40
2024-07-02 20:10:50 C 15 56 47.50 +04 39 50.1 X G02
2024-07-02 20:11:55 C 15 56 46.59 +04 40 02.9 V C40
2024-07-02 20:14:42 C 15 56 48.50 +04 40 22.4 V C40
2024-07-02 20:14:49 C 15 56 50.23 +04 40 18.2 X G02
2024-07-02 20:16:20 C 15 56 51.88 +04 40 35.9 V G17
2024-07-02 20:17:30 C 15 56 50.42 +04 40 42.0 V C40
2024-07-02 20:18:00 C 15 56 53.01 +04 40 47.4 V G17
2024-07-02 20:18:46 C 15 56 52.93 +04 40 45.7 X G02
2024-07-02 20:19:40 C 15 56 54.16 +04 40 59.6 V G17
2024-07-02 20:20:17 C 15 56 52.32 +04 41 01.5 V C40
2024-07-02 20:23:05 C 15 56 54.24 +04 41 21.0 V C40
2024-07-02 20:25:52 C 15 56 56.14 +04 41 40.3 V C40
2024-07-02 20:28:39 C 15 56 58.05 +04 41 59.7 V C40
2024-07-02 20:31:26 C 15 56 59.95 +04 42 19.1 V C40
2024-07-02 21:14:02 C 15 57 31.17 +04 47 16.9 q 126
2024-07-02 21:21:30 C 15 57 36.21 +04 48 08.3 q 126
2024-07-02 21:28:44 C 15 57 41.08 +04 48 58.1 q 126
2024-07-03 01:57:24 V 16 00 44.68 +05 19 10.1 V 270
2024-07-03 01:57:24 v 1 279.30527 +34.19606 270
2024-07-03 02:10:31 V 16 00 52.96 +05 20 33.8 V 270
2024-07-03 02:10:31 v 1 279.30527 +34.19606 270
2024-07-03 02:23:37 V 16 01 01.24 +05 21 59.4 V 270
2024-07-03 02:23:37 v 1 279.30527 +34.19606 270
2024-07-03 02:36:47 V 16 01 09.45 +05 23 22.2 V 270
2024-07-03 02:36:47 v 1 279.30527 +34.19606 270
2024-07-03 02:56:02 C 16 01 20.41 +05 25 13.9 q 851
2024-07-03 03:03:21 C 16 01 25.03 +05 26 00.7 q 851
2024-07-03 03:10:47 C 16 01 29.72 +05 26 48.2 q 851
2024-07-03 03:18:13 C 16 01 34.41 +05 27 35.8 q 851
2024-07-03 03:25:49 C 16 01 39.20 +05 28 24.2 q 851
2024-07-03 08:28:55 C 16 04 50.818 +06 00 15.98 V T08
2024-07-03 08:33:50 C 16 04 53.695 +06 00 45.36 V T08
2024-07-03 08:41:29 C 16 04 58.178 +06 01 30.97 V T08
2024-07-03 09:00:24 C 16 05 09.240 +06 03 23.58 V T08
2024-07-03 11:09:17 V 16 06 29.82 +06 15 36.3 V 270
2024-07-03 11:09:17 v 1 139.13620 +35.33846 270
2024-07-03 11:22:24 V 16 06 37.33 +06 16 52.5 V 270
2024-07-03 11:22:24 v 1 139.13620 +35.33846 270
2024-07-03 11:35:34 V 16 06 44.82 +06 18 08.9 V 270
2024-07-03 11:35:34 v 1 139.13620 +35.33846 270
2024-07-03 11:48:44 V 16 06 52.29 +06 19 24.9 V 270
2024-07-03 11:48:44 v 1 139.13620 +35.33846 270
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2024-06-26 23:40:00 46095708 20 us 8560 -14 -14
2024-06-27 00:10:00 46009798 2 us 8560 -14 -14
2024-06-29 02:00:00 47980230.07 3 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)