2013 XA4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5828135908 ± 1.02e-05
Semi-major axis (a)2.6935296039 AU ± 5.82e-05
Inclination (i)8.39057975° ± 1.19e-04
Long. of Asc. Node (Ω)85.07043530° ± 1.00e-04
Arg. of Perihelion (ω)7.31505116° ± 2.94e-04
Mean Anomaly (M)253.94513449° ± 3.12e-02
Mean Motion (n)0.2229613814°/day ± 7.23e-06
Perihelion dist (q)1.12370394 AU ± 3.66e-05
Aphelion dist (Q)4.26335526 AU ± 9.61e-05
Orbital Period4.42061436 yr ± 1.43e-04
Physical Parameters
H (abs. magnitude)21.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.431″
Uncertainty2
Orbit TypeAmor
MOID0.140353 AU
Observations Used257
Radar Obs Used2
Oppositions1
Arc Total2013-2014
First Observation Used2013-11-23
Last Observation Used2014-02-04
Observations (269)
Date Type RA Dec Mag Band Observatory
2014-01-10 04:20:22 C 08 02 06.32 +49 12 37.2 q 703
2014-01-10 04:27:42 C 08 02 08.40 +49 12 45.1 q 703
2014-01-10 04:35:03 C 08 02 10.44 +49 12 51.9 q 703
2014-01-10 05:04:10 C 08 02 18.46 +49 13 20.1 q 703
2014-01-10 05:20:32 C 08 02 22.72 +49 13 35.5 q 703
2014-01-10 06:15:10 C 08 02 37.44 +49 14 27.4 q 703
2014-01-10 06:16:04 C 08 02 37.69 +49 14 28.2 q 703
2014-01-10 06:16:57 C 08 02 37.89 +49 14 28.9 q 703
2014-01-10 06:17:51 C 08 02 38.14 +49 14 29.8 q 703
2014-01-10 06:18:44 C 08 02 38.44 +49 14 30.2 q 703
2014-01-19 11:32:41 C 08 54 44.684 +50 23 54.23 L F51
2014-01-19 11:51:06 C 08 54 47.702 +50 23 52.36 L F51
2014-01-19 12:09:30 C 08 54 50.712 +50 23 50.36 L F51
2014-01-24 02:35:15 C 09 12 39.37 +49 59 47.1 q I15
2014-01-24 02:43:34 C 09 12 40.53 +49 59 45.4 q I15
2014-01-24 02:51:54 C 09 12 41.49 +49 59 43.3 q I15
2014-02-04 01:34:24 C 09 38 40.73 +47 48 58.0 q H21
2014-02-04 01:43:14 C 09 38 41.31 +47 48 52.7 q H21
2014-02-04 01:50:43 C 09 38 41.85 +47 48 49.4 q H21
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2013-12-16 03:45:00 37142.083 1 Hz 2380 -1 -1
2013-12-16 04:10:00 36329.8101 0.5 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)