494999 (2010 JU39)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5460130311 ± 5.31e-08
Semi-major axis (a)0.9191389477 AU ± 2.12e-09
Inclination (i)36.21578089° ± 5.97e-06
Long. of Asc. Node (Ω)95.15950408° ± 1.27e-06
Arg. of Perihelion (ω)311.38089500° ± 2.43e-06
Mean Anomaly (M)21.50944187° ± 1.20e-05
Mean Motion (n)1.1185116765°/day ± 3.88e-09
Perihelion dist (q)0.41727710 AU ± 4.88e-08
Aphelion dist (Q)1.42100079 AU ± 4.89e-08
Orbital Period0.88119445 yr ± 3.05e-09
Physical Parameters
H (abs. magnitude)19.68
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.249″
Uncertainty0
Orbit TypeAten
MOID0.005666 AU
Observations Used180
Radar Obs Used3
Oppositions2
Arc Total2003-2025
First Observation Used2003-06-07
Last Observation Used2025-06-17
Observations (191)
Date Type RA Dec Mag Band Observatory
2019-06-16 22:16:09 C 18 40 53.24 +23 53 24.9 V Z17
2019-06-16 22:18:09 C 18 40 52.61 +23 53 26.5 V Z17
2019-06-16 22:20:09 C 18 40 51.97 +23 53 27.2 V Z17
2019-06-16 22:22:07 C 18 40 51.35 +23 53 28.6 V Z17
2019-06-16 22:24:05 C 18 40 50.73 +23 53 29.8 V Z17
2019-06-16 23:09:00 C 18 40 36.45 +23 53 54.8 V Z17
2019-06-16 23:10:59 C 18 40 35.83 +23 53 56.1 V Z17
2019-06-16 23:12:57 C 18 40 35.19 +23 53 57.0 V Z17
2019-06-22 00:13:03 C 17 41 25.28 +24 23 17.0 V J27
2019-06-22 00:15:34 C 17 41 23.33 +24 23 16.0 V J27
2019-06-22 00:19:33 C 17 41 20.26 +24 23 14.6 V J27
2019-06-22 08:37:24 C 17 34 51.41 +24 19 59.1 V 703
2019-06-22 08:46:10 C 17 34 44.20 +24 19 53.8 V 703
2019-06-22 08:54:57 C 17 34 36.96 +24 19 48.8 V 703
2019-06-22 09:03:42 C 17 34 29.70 +24 19 43.6 V 703
2019-06-22 21:41:42 C 17 23 49.06 +24 10 53.8 q C23
2019-06-22 21:51:31 C 17 23 40.08 +24 10 46.2 q C23
2019-06-22 22:03:05 C 17 23 29.48 +24 10 36.5 q C23
2019-06-22 22:12:55 C 17 23 20.44 +24 10 28.6 q C23
2019-06-22 23:41:23 C 17 21 58.59 +24 09 11.4 q C23
2019-06-22 23:48:20 C 17 21 52.15 +24 09 04.7 q C23
2019-06-22 23:58:10 C 17 21 42.96 +24 08 55.8 q C23
2019-06-24 08:53:03 C 16 47 04.81 +23 18 59.9 V 654
2019-06-24 09:05:41 C 16 46 49.35 +23 18 29.6 V 654
2019-06-24 09:17:12 C 16 46 35.25 +23 18 01.8 V 654
2019-06-24 21:28:10 C 16 31 13.06 +22 45 05.6 B18
2019-06-24 21:29:12 C 16 31 11.70 +22 45 02.3 B18
2019-06-24 21:30:11 C 16 31 10.32 +22 44 59.2 B18
2019-06-24 21:31:13 C 16 31 08.96 +22 44 56.0 B18
2019-06-24 21:32:13 C 16 31 07.59 +22 44 52.8 B18
2019-06-24 21:33:14 C 16 31 06.23 +22 44 49.6 B18
2019-06-24 21:34:16 C 16 31 04.85 +22 44 46.4 B18
2019-06-24 21:35:16 C 16 31 03.49 +22 44 43.1 B18
2019-06-24 21:36:18 C 16 31 02.11 +22 44 39.8 B18
2019-06-25 00:45:59 C 16 26 46.17 +22 34 25.1 q 160
2019-06-25 00:48:54 C 16 26 42.17 +22 34 15.2 q 160
2019-06-25 00:51:46 C 16 26 38.23 +22 34 05.5 q 160
2019-06-25 06:28:16 C 16 18 54.02 +22 14 48.8 V G96
2019-06-25 06:35:43 C 16 18 43.20 +22 14 20.8 V G96
2019-06-25 06:43:12 C 16 18 32.37 +22 13 51.9 V G96
2019-06-25 06:50:38 C 16 18 21.57 +22 13 23.4 V G96
2019-06-25 07:34:40 C 16 17 18.40 +22 10 31.0 V 654
2019-06-25 07:34:57 C 16 17 17.16 +22 10 31.3 V 703
2019-06-25 07:42:36 C 16 17 06.00 +22 10 01.7 V 703
2019-06-25 07:46:49 C 16 17 00.70 +22 09 43.5 V 654
2019-06-25 07:50:15 C 16 16 54.84 +22 09 31.5 V 703
2019-06-25 07:57:56 C 16 16 43.67 +22 09 01.2 V 703
2019-06-25 08:21:59 C 16 16 09.29 +22 07 23.9 V 654
2019-06-25 08:37:32 C 16 15 50.92 +22 06 58.8 V T05
2019-06-25 08:42:08 C 16 15 44.17 +22 06 40.9 V T05
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2019-06-27 00:48:00 111793.9091 0.2 Hz 2380 -1 -1
2019-06-27 01:06:00 63338006.54 4 us 2380 -1 -1
2019-06-28 00:25:00 60569617.51 0.35 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)