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
2013-12-05 21:57:02 C 04 18 22.32 +05 49 43.8 t I58
2013-12-05 22:15:04 C 04 18 23.71 +05 50 28.3 q 104
2013-12-05 22:20:14 C 04 18 24.29 +05 50 42.0 q 104
2013-12-05 22:38:22 C 04 18 26.51 +05 51 30.5 t B75
2013-12-05 22:41:35 C 04 18 26.86 +05 51 39.3 t B75
2013-12-05 22:46:43 C 04 18 27.39 +05 51 52.6 t B75
2013-12-05 22:49:56 C 04 18 27.76 +05 52 01.0 u K38
2013-12-05 22:52:01 C 04 18 28.00 +05 52 06.2 t B75
2013-12-05 23:22:09 C 04 18 31.42 +05 53 28.2 u K38
2013-12-05 23:41:16 C 04 18 33.58 +05 54 20.2 t K33
2013-12-06 01:05:38 C 04 18 43.40 +05 58 07.9 t 204
2013-12-06 01:18:21 C 04 18 44.87 +05 58 42.3 t 204
2013-12-06 01:29:13 C 04 18 46.16 +05 59 11.8 t 204
2013-12-06 13:34:50 C 04 20 21.54 +06 33 52.2 q E23
2013-12-06 13:39:50 C 04 20 22.12 +06 34 05.3 q E23
2013-12-06 13:44:49 C 04 20 22.69 +06 34 20.0 q E23
2013-12-06 14:28:43 C 04 20 28.96 +06 35 13.8 o 300
2013-12-06 14:35:26 C 04 20 29.74 +06 35 32.9 o 300
2013-12-06 14:38:49 C 04 20 30.14 +06 35 41.8 o 300
2013-12-06 20:15:40 C 04 21 16.51 +06 51 19.3 t 595
2013-12-06 20:36:56 C 04 21 19.12 +06 52 20.0 t 595
2013-12-06 20:55:08 C 04 21 21.31 +06 53 11.3 t 595
2013-12-06 21:22:03 C 04 21 25.57 +06 54 32.5 w J87
2013-12-06 21:27:25 C 04 21 26.22 +06 54 47.9 w J87
2013-12-06 21:32:41 C 04 21 26.85 +06 55 02.8 w J87
2013-12-06 23:15:54 C 04 21 38.54 +06 59 52.6 u K38
2013-12-06 23:48:32 C 04 21 42.52 +07 01 25.6 u K38
2013-12-07 00:08:43 C 04 21 45.48 +07 02 26.3 u 958
2013-12-07 00:19:27 C 04 21 46.78 +07 02 57.0 u 958
2013-12-07 00:36:18 C 04 21 48.83 +07 03 44.7 u 958
2013-12-07 01:30:47 C 04 21 58.56 +07 07 44.2 u 844
2013-12-07 01:35:23 C 04 21 59.07 +07 07 53.5 u 844
2013-12-07 01:39:58 C 04 21 59.56 +07 08 07.0 u 844
2013-12-07 01:44:34 C 04 22 00.12 +07 08 20.5 u 844
2013-12-07 01:49:10 C 04 22 00.66 +07 08 33.4 u 844
2013-12-07 06:35:08 C 04 22 37.18 +07 21 00.4 u H21
2013-12-07 06:35:23 C 04 22 38.25 +07 21 08.6 q 448
2013-12-07 06:37:38 C 04 22 37.44 +07 21 07.8 u H21
2013-12-07 06:40:08 C 04 22 37.78 +07 21 14.6 u H21
2013-12-07 06:43:03 C 04 22 38.12 +07 21 23.6 u H21
2013-12-07 06:43:11 C 04 22 39.20 +07 21 31.2 q 448
2013-12-07 06:45:33 C 04 22 38.44 +07 21 30.8 u H21
2013-12-07 06:48:02 C 04 22 38.75 +07 21 37.6 u H21
2013-12-07 06:49:13 C 04 22 39.91 +07 21 48.5 q 448
2013-12-07 06:54:41 C 04 22 40.58 +07 22 04.7 q 448
2013-12-07 06:59:37 C 04 22 41.19 +07 22 18.7 q 448
2013-12-07 07:09:18 C 04 22 42.59 +07 22 46.8 q G96
2013-12-07 07:20:38 C 04 22 43.96 +07 23 19.7 q G96
2013-12-07 07:31:58 C 04 22 45.33 +07 23 52.5 q G96
2013-12-07 07:43:22 C 04 22 46.71 +07 24 25.6 q G96
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)