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
2013-11-23 08:18:24 C 03 50 37.421 -03 36 16.24 L F51
2013-11-23 09:22:26 C 03 50 40.858 -03 35 01.42 L F51
2013-11-24 09:23:36 C 03 52 17.939 -03 05 36.37 L F51
2013-11-24 09:40:39 C 03 52 18.897 -03 05 14.62 L F51
2013-12-04 06:52:57 C 04 13 40.133 +04 09 10.78 L F51
2013-12-04 07:11:15 C 04 13 42.022 +04 09 56.07 L F51
2013-12-04 22:32:25 C 04 15 28.94 +04 48 13.8 r J75
2013-12-04 22:38:22 C 04 15 29.60 +04 48 29.5 r J75
2013-12-04 22:44:23 C 04 15 30.25 +04 48 44.7 r J75
2013-12-05 01:30:15 C 04 15 47.93 +04 55 49.7 r J75
2013-12-05 01:34:14 C 04 15 48.34 +04 55 59.9 r J75
2013-12-05 01:38:11 C 04 15 48.74 +04 56 10.1 r J75
2013-12-05 01:39:31 C 04 15 48.92 +04 56 13.6 r J75
2013-12-05 06:06:24 C 04 16 23.63 +05 07 43.5 18.2 r 718
2013-12-05 06:10:35 C 04 16 24.10 +05 07 53.6 18.1 r 718
2013-12-05 06:14:39 C 04 16 24.54 +05 08 04.4 18.1 r 718
2013-12-05 06:18:43 C 04 16 25.02 +05 08 14.5 18.0 r 718
2013-12-05 11:49:20 C 04 17 07.33 +05 22 46.5 o 300
2013-12-05 12:02:09 C 04 17 08.79 +05 23 21.1 o 300
2013-12-05 12:04:42 C 04 17 09.05 +05 23 26.6 o 300
2013-12-05 12:07:15 C 04 17 09.31 +05 23 34.2 o 300
2013-12-05 12:35:20 C 04 17 11.34 +05 25 55.7 q E23
2013-12-05 12:40:20 C 04 17 11.88 +05 26 09.6 q E23
2013-12-05 12:45:19 C 04 17 12.39 +05 26 22.2 q E23
2013-12-05 13:02:05 C 04 17 14.24 +05 27 06.7 q E23
2013-12-05 13:11:35 C 04 17 15.33 +05 27 31.7 q E23
2013-12-05 13:21:36 C 04 17 16.40 +05 27 58.4 q E23
2013-12-05 13:31:03 C 04 17 19.51 +05 27 00.5 o C94
2013-12-05 13:31:15 C 04 17 18.45 +05 27 15.7 q 900
2013-12-05 13:32:47 C 04 17 19.68 +05 27 04.6 o C94
2013-12-05 13:34:32 C 04 17 19.90 +05 27 08.5 o C94
2013-12-05 13:41:32 C 04 17 19.53 +05 27 43.0 q 900
2013-12-05 13:52:00 C 04 17 20.72 +05 28 11.4 q 900
2013-12-05 18:58:00 C 04 18 01.07 +05 41 35.3 18.3 u B04
2013-12-05 19:06:16 C 04 18 02.09 +05 41 57.8 t K33
2013-12-05 19:13:28 C 04 18 02.92 +05 42 16.0 18.1 u B04
2013-12-05 19:21:47 C 04 18 03.89 +05 42 39.4 18.5 u B04
2013-12-05 19:28:36 C 04 18 04.66 +05 42 59.6 18.1 u B04
2013-12-05 19:29:56 C 04 18 04.91 +05 43 01.4 t K33
2013-12-05 19:30:12 C 04 18 04.88 +05 43 02.7 q C77
2013-12-05 19:34:21 C 04 18 05.40 +05 43 13.5 q C77
2013-12-05 19:38:54 C 04 18 05.91 +05 43 26.3 q C77
2013-12-05 19:42:23 C 04 18 06.37 +05 43 34.8 t K33
2013-12-05 19:43:41 C 04 18 06.51 +05 43 38.8 q C77
2013-12-05 19:57:44 C 04 18 08.52 +05 44 21.9 c J08
2013-12-05 20:07:53 C 04 18 09.71 +05 44 49.0 c J08
2013-12-05 20:13:31 C 04 18 10.40 +05 45 04.6 c J08
2013-12-05 21:25:52 C 04 18 18.85 +05 48 19.5 t I58
2013-12-05 21:36:25 C 04 18 20.02 +05 48 47.6 t I58
2013-12-05 21:47:20 C 04 18 21.26 +05 49 17.6 t I58
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)