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
2021-07-25 02:13:59 S 20 23 01.370 +29 35 09.49 V C57
2021-07-25 02:13:59 s 1 +166269.66 1 +82799.692 9480.0 C57
2021-07-25 02:23:59 S 20 23 00.278 +29 35 06.36 V C57
2021-07-25 02:23:59 s 1 +166434.53 7 +83734.783 7330.0 C57
2021-07-25 02:43:59 S 20 22 57.562 +29 35 02.11 V C57
2021-07-25 02:43:59 s 1 +166754.36 4 +85599.935 2530.0 C57
2021-07-25 03:03:59 S 20 22 54.900 +29 35 03.48 V C57
2021-07-25 03:03:59 s 1 +167061.12 1 +87458.354 7610.0 C57
2021-07-25 03:13:59 S 20 22 53.990 +29 35 03.59 V C57
2021-07-25 03:13:59 s 1 +167209.66 1 +88385.030 5310.0 C57
2021-07-25 03:23:59 S 20 22 52.932 +29 35 03.80 V C57
2021-07-25 03:23:59 s 1 +167355.00 7 +89310.012 3200.0 C57
2021-07-25 03:43:59 S 20 22 50.208 +29 35 03.98 V C57
2021-07-25 03:43:59 s 1 +167636.21 3 +91154.881 9890.0 C57
2021-07-25 04:03:59 S 20 22 47.926 +29 35 01.68 V C57
2021-07-25 04:03:59 s 1 +167904.92 9 +92992.936 8280.0 C57
2021-07-25 04:13:59 S 20 22 46.519 +29 35 01.28 V C57
2021-07-25 04:13:59 s 1 +168034.66 1 +93909.402 8290.0 C57
2021-07-25 04:53:59 S 20 22 41.782 +29 35 01.39 V C57
2021-07-25 04:53:59 s 1 +168523.28 3 +97558.124 5480.0 C57
2021-07-25 05:03:59 S 20 22 40.325 +29 35 05.24 V C57
2021-07-25 05:03:59 s 1 +168637.97 3 +98466.008 9410.0 C57
2021-07-25 05:23:59 S 20 22 37.793 +29 34 59.27 V C57
2021-07-25 05:23:59 s 1 +168858.54 9 +100276.60 310.0 C57
2021-07-25 05:33:59 S 20 22 36.646 +29 35 00.17 V C57
2021-07-25 05:33:59 s 1 +168964.47 7 +101179.31 7420.0 C57
2021-07-25 05:43:59 S 20 22 35.556 +29 34 58.80 V C57
2021-07-25 05:43:59 s 1 +169067.52 6 +102080.29 5710.0 C57
2021-07-25 06:03:59 S 20 22 32.746 +29 35 00.64 V C57
2021-07-25 06:03:59 s 1 +169265.07 5 +103877.07 6140.0 C57
2021-07-25 06:33:59 S 20 22 29.474 +29 34 57.36 V C57
2021-07-25 06:33:59 s 1 +169540.33 0 +106559.23 7340.0 C57
2021-07-25 06:43:59 S 20 22 27.881 +29 34 57.90 V C57
2021-07-25 06:43:59 s 1 +169626.54 4 +107449.82 4150.0 C57
2021-07-25 06:53:59 S 20 22 26.933 +29 34 55.42 V C57
2021-07-25 06:53:59 s 1 +169710.02 3 +108338.67 2590.0 C57
2021-07-25 07:03:59 S 20 22 25.577 +29 34 56.28 V C57
2021-07-25 07:03:59 s 1 +169790.78 6 +109225.78 2730.0 C57
2021-07-25 07:23:59 S 20 22 23.609 +29 34 55.81 V C57
2021-07-25 07:23:59 s 1 +169944.24 1 +110994.78 8350.0 C57
2021-07-25 08:03:59 S 20 22 18.134 +29 34 55.38 V C57
2021-07-25 08:03:59 s 1 +170219.40 2 +114511.91 2630.0 C57
2021-07-25 08:13:59 S 20 22 16.817 +29 34 56.78 V C57
2021-07-25 08:13:59 s 1 +170281.68 7 +115386.84 6340.0 C57
2021-07-25 08:23:59 S 20 22 15.936 +29 34 57.90 V C57
2021-07-25 08:23:59 s 1 +170341.40 6 +116260.02 2210.0 C57
2021-07-25 08:33:59 S 20 22 14.758 +29 34 54.30 V C57
2021-07-25 08:33:59 s 1 +170398.57 8 +117131.47 320.0 C57
2021-07-25 09:03:59 S 20 22 11.090 +29 34 53.98 V C57
2021-07-25 09:03:59 s 1 +170554.98 5 +119735.35 8550.0 C57
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)