439437 (2013 NK4)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5499303995 ± 1.89e-08
Semi-major axis (a)1.0227061563 AU ± 1.14e-09
Inclination (i)6.54740011° ± 1.35e-06
Long. of Asc. Node (Ω)33.69525755° ± 1.82e-06
Arg. of Perihelion (ω)50.59070783° ± 2.15e-06
Mean Anomaly (M)254.19610193° ± 2.14e-06
Mean Motion (n)0.9529847936°/day ± 1.59e-09
Perihelion dist (q)0.46028895 AU ± 1.93e-08
Aphelion dist (Q)1.58512336 AU ± 1.94e-08
Orbital Period1.03425185 yr ± 1.73e-09
Physical Parameters
H (abs. magnitude)18.94
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.211″
Uncertainty0
Orbit TypeApollo
MOID0.015060 AU
Observations Used557
Radar Obs Used5
Oppositions1
Arc Total2013-2025
First Observation Used2013-07-01
Last Observation Used2025-05-29
Observations (627)
Date Type RA Dec Mag Band Observatory
2024-04-27 19:57:13 B 13 00 08.994 -08 35 37.93 V L92
2024-04-27 20:00:16 B 13 00 08.621 -08 35 41.03 V L92
2024-04-27 20:02:24 C 13 00 07.90 -08 35 50.6 X G02
2024-04-27 20:06:24 B 13 00 07.845 -08 35 45.30 V L92
2024-04-27 20:10:46 C 13 00 06.74 -08 35 57.0 X G02
2024-04-27 20:30:52 B 13 00 04.267 -08 36 03.32 V L92
2024-04-28 04:49:30 C 12 59 03.937 -08 41 56.22 V G96
2024-04-28 04:57:31 C 12 59 02.857 -08 42 01.91 V G96
2024-04-28 05:05:35 C 12 59 01.770 -08 42 07.56 V G96
2024-04-28 05:13:37 C 12 59 00.686 -08 42 13.28 V G96
2024-04-28 08:22:32 C 12 58 35.620 -08 44 21.77 V 703
2024-04-28 08:25:50 C 12 58 35.188 -08 44 23.57 V 703
2024-04-28 08:29:09 C 12 58 34.781 -08 44 25.98 V 703
2024-04-28 08:32:27 C 12 58 34.342 -08 44 28.14 V 703
2024-04-28 20:26:32 C 12 57 18.02 -08 52 32.1 V C40
2024-04-28 20:35:53 C 12 57 16.91 -08 52 38.1 V C40
2024-04-28 20:45:16 C 12 57 15.80 -08 52 44.0 V C40
2024-04-28 21:23:03 C 12 57 13.087 -08 53 12.01 Z C23
2024-04-28 21:25:22 C 12 57 12.845 -08 53 13.45 Z C23
2024-04-28 21:27:40 C 12 57 12.550 -08 53 15.00 Z C23
2024-04-28 23:13:51 C 12 56 59.006 -08 52 55.88 V M22
2024-04-28 23:19:06 C 12 56 58.392 -08 52 59.05 V M22
2024-04-28 23:33:42 C 12 56 56.693 -08 53 07.94 V M22
2024-04-28 23:56:56 C 12 56 54.007 -08 53 22.06 V M22
2024-04-29 18:50:23 B 12 55 09.994 -09 04 47.21 Z M49
2024-04-29 19:10:51 B 12 55 07.860 -09 04 59.23 Z M49
2024-04-29 19:32:12 B 12 55 05.618 -09 05 11.62 Z M49
2024-04-29 20:21:53 B 12 55 00.382 -09 05 40.24 Z M49
2024-04-29 20:41:16 B 12 54 58.483 -09 06 55.84 V 160
2024-04-29 20:42:23 B 12 54 58.212 -09 05 51.90 Z M49
2024-04-29 20:47:13 B 12 54 57.895 -09 06 59.94 V 160
2024-04-29 20:52:29 B 12 54 57.341 -09 07 02.82 V 160
2024-04-29 20:57:31 C 12 54 56.79 -09 07 05.8 V G17
2024-04-29 21:02:59 C 12 54 56.26 -09 07 08.4 V G17
2024-04-29 21:03:42 B 12 54 55.956 -09 06 03.89 Z M49
2024-04-29 21:08:27 C 12 54 55.70 -09 07 11.8 V G17
2024-04-29 22:13:35 B 12 54 48.602 -09 06 42.52 Z M49
2024-04-29 22:34:02 B 12 54 46.476 -09 06 53.64 Z M49
2024-04-29 22:55:23 B 12 54 44.270 -09 07 05.09 Z M49
2024-04-29 23:30:38 B 12 54 40.673 -09 07 23.84 Z M49
2024-04-29 23:48:02 B 12 54 38.921 -09 07 33.06 Z M49
2024-04-30 00:06:39 B 12 54 37.066 -09 07 42.78 Z M49
2024-04-30 00:32:50 B 12 54 34.490 -09 07 56.35 Z M49
2024-04-30 00:57:47 B 12 54 32.076 -09 08 09.31 Z M49
2024-04-30 01:22:10 B 12 54 29.770 -09 08 21.62 Z M49
2024-04-30 07:57:57 C 12 53 57.894 -09 12 50.26 V 703
2024-04-30 08:01:18 C 12 53 57.620 -09 12 51.59 V 703
2024-04-30 08:04:37 C 12 53 57.253 -09 12 54.00 V 703
2024-04-30 08:07:55 C 12 53 56.915 -09 12 56.20 V 703
2024-04-30 20:25:36 C 12 53 01.31 -09 19 24.8 X G02
Radar Observations (5)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2024-04-13 10:50:00 666335.812 0.1 Hz 8560 -14 -14
2024-04-13 11:00:00 29850789.846 10 us 8560 -14 -14
2024-04-13 11:20:00 29757790.978 2 us 8560 -14 -14
2024-04-17 06:00:00 26676670.259 2 us 8560 -14 -14
2024-04-19 04:50:00 40426934.09 0.5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)