2013 US3

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1851414719 ± 1.19e-08
Semi-major axis (a)1.2019837491 AU ± 3.10e-09
Inclination (i)12.31813156° ± 1.11e-06
Long. of Asc. Node (Ω)39.53703513° ± 9.21e-07
Arg. of Perihelion (ω)134.17390147° ± 5.41e-06
Mean Anomaly (M)296.50641859° ± 6.68e-06
Mean Motion (n)0.7479359048°/day ± 2.89e-09
Perihelion dist (q)0.97944671 AU ± 1.45e-08
Aphelion dist (Q)1.42452079 AU ± 1.48e-08
Orbital Period1.31779512 yr ± 5.09e-09
Physical Parameters
H (abs. magnitude)21.32
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.284″
Uncertainty0
Orbit TypeApollo
MOID0.018448 AU
Observations Used274
Radar Obs Used7
Oppositions1
Arc Total2013-2022
First Observation Used2013-10-24
Last Observation Used2022-02-05
Observations (278)
Date Type RA Dec Mag Band Observatory
2018-05-04 02:50:06 C 12 02 37.11 -21 29 18.1 r Y00
2018-05-04 02:52:31 C 12 02 37.13 -21 29 53.1 r Y00
2018-05-04 02:54:48 C 12 02 37.02 -21 30 26.6 r Y00
2018-05-04 21:49:38 C 12 03 44.95 -25 54 50.2 r Y00
2018-05-04 21:51:00 C 12 03 44.89 -25 55 09.4 r Y00
2018-05-04 21:52:24 C 12 03 44.91 -25 55 27.8 r Y00
2018-05-07 00:51:59 C 12 05 40.10 -35 12 13.3 u X87
2018-05-07 01:07:39 C 12 05 39.00 -35 14 13.9 q Y00
2018-05-07 01:08:10 C 12 05 38.98 -35 14 18.5 q Y00
2018-05-07 01:09:53 C 12 05 38.93 -35 14 34.2 q Y00
2018-05-07 01:10:24 C 12 05 38.91 -35 14 38.4 q Y00
2018-05-07 01:11:00 C 12 05 39.58 -35 15 03.2 u X87
2018-05-07 01:12:21 C 12 05 38.83 -35 14 55.7 q Y00
2018-05-07 01:12:50 C 12 05 38.86 -35 15 00.0 q Y00
2018-05-07 08:15:44 C 12 05 58.37 -36 18 53.4 U T05
2018-05-07 08:25:40 C 12 05 58.14 -36 20 17.6 U T05
2018-05-07 08:35:32 C 12 05 57.91 -36 21 40.7 U T05
2018-05-07 08:54:40 C 12 05 57.51 -36 24 20.8 U T05
2021-12-01 10:01:53 C 09 58 27.57 +43 40 24.9 V G96
2021-12-01 10:09:16 C 09 58 29.31 +43 40 30.3 V G96
2021-12-01 10:24:00 C 09 58 32.73 +43 40 42.6 V G96
2022-01-22 12:41:50 C 15 21 56.65 +38 02 18.0 V G96
2022-01-22 12:47:20 C 15 21 57.59 +38 02 11.5 V G96
2022-01-22 12:52:52 C 15 21 58.60 +38 02 04.3 V G96
2022-01-22 12:58:22 C 15 21 59.62 +38 01 57.4 V G96
2022-02-05 12:30:17 C 16 18 55.60 +29 52 22.2 V G96
2022-02-05 12:44:02 C 16 18 57.56 +29 52 01.1 V G96
2022-02-05 12:50:53 C 16 18 58.55 +29 51 49.9 V G96
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2018-04-24 03:40:00 295714.4 0.2 Hz 8560 -14 -14
2018-04-24 04:10:00 293804.508 0.031 Hz 8560 -14 -14
2018-04-24 04:40:00 34630198 10 us 8560 -14 -14
2018-04-24 06:00:00 34468117 2 us 8560 -14 -14
2018-04-26 00:40:00 233213.844 0.05 Hz 8560 -14 -14
2018-04-26 01:50:00 29774313.76 0.25 us 8560 -14 -14
2018-05-01 03:10:00 -112524.579 0.05 Hz 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)