199003 (2005 WJ56)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1520194228 ± 9.55e-09
Semi-major axis (a)0.9590116507 AU ± 1.43e-10
Inclination (i)21.61637987° ± 2.38e-06
Long. of Asc. Node (Ω)288.01474602° ± 4.47e-07
Arg. of Perihelion (ω)297.65358928° ± 1.15e-06
Mean Anomaly (M)266.88352734° ± 2.13e-06
Mean Motion (n)1.0494855208°/day ± 2.36e-10
Perihelion dist (q)0.81322325 AU ± 9.16e-09
Aphelion dist (Q)1.10480005 AU ± 9.16e-09
Orbital Period0.93915186 yr ± 2.11e-10
Physical Parameters
H (abs. magnitude)18.16
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.321″
Uncertainty0
Orbit TypeAten
MOID0.022468 AU
Observations Used1234
Radar Obs Used5
Oppositions1
Arc Total2005-2024
First Observation Used2005-11-29
Last Observation Used2024-11-29
Observations (1308)
Date Type RA Dec Mag Band Observatory
2023-12-14 11:20:22 C 11 44 54.035 +20 36 11.02 V 703
2023-12-14 11:23:21 C 11 44 54.294 +20 36 01.69 V 703
2023-12-15 12:05:09 C 11 47 20.440 +19 14 29.04 V 703
2023-12-15 12:08:28 C 11 47 20.771 +19 14 18.17 V 703
2023-12-15 12:11:48 C 11 47 21.077 +19 14 06.65 V 703
2023-12-15 12:15:08 C 11 47 21.368 +19 13 55.60 V 703
2023-12-15 13:31:06 C 11 47 29.825 +19 09 43.52 V T05
2023-12-15 13:35:39 C 11 47 30.223 +19 09 28.66 V T05
2023-12-15 14:03:12 C 11 47 32.774 +19 07 56.03 V T05
2023-12-15 14:11:48 C 11 47 33.552 +19 07 27.52 V T05
2023-12-16 10:15:46 C 11 49 33.629 +17 58 28.56 V 703
2023-12-16 10:18:44 C 11 49 33.866 +17 58 18.12 V 703
2023-12-16 10:21:42 C 11 49 34.162 +17 58 07.97 V 703
2023-12-16 10:24:39 C 11 49 34.468 +17 57 58.03 V 703
2023-12-16 12:10:30 C 11 49 44.274 +17 51 50.33 V G96
2023-12-16 12:17:56 C 11 49 44.958 +17 51 24.41 V G96
2023-12-16 12:25:23 C 11 49 45.638 +17 50 58.52 V G96
2023-12-16 12:32:51 C 11 49 46.319 +17 50 32.42 V G96
2023-12-16 13:41:10 C 11 49 54.134 +17 46 37.78 V T05
2023-12-16 13:45:46 C 11 49 54.569 +17 46 21.72 V T05
2023-12-16 14:09:54 C 11 49 56.794 +17 44 57.77 V T05
2023-12-16 14:17:44 C 11 49 57.533 +17 44 30.26 V T05
2023-12-17 11:21:30 C 11 52 04.188 +16 29 17.52 V 703
2023-12-17 11:24:50 C 11 52 04.498 +16 29 05.35 V 703
2023-12-17 11:28:10 C 11 52 04.822 +16 28 53.36 V 703
2023-12-17 11:31:30 C 11 52 05.135 +16 28 41.52 V 703
2023-12-17 14:16:32 C 11 52 22.010 +16 18 48.78 V T08
2023-12-17 14:21:24 C 11 52 22.481 +16 18 30.82 V T08
2023-12-17 14:30:56 C 11 52 23.347 +16 17 56.33 V T08
2023-12-17 14:46:31 C 11 52 24.780 +16 17 00.10 V T08
2023-12-18 10:38:51 C 11 54 25.934 +15 03 18.36 V 703
2023-12-18 10:41:50 C 11 54 26.197 +15 03 07.24 V 703
2023-12-18 10:44:49 C 11 54 26.521 +15 02 55.28 V 703
2023-12-18 10:47:49 C 11 54 26.777 +15 02 44.77 V 703
2023-12-21 07:47:41 C 12 01 35.282 +10 29 42.40 V W68
2023-12-21 07:52:16 C 12 01 35.724 +10 29 23.60 V W68
2023-12-21 08:12:41 C 12 01 37.733 +10 27 58.64 V W68
2023-12-21 08:21:57 C 12 01 38.647 +10 27 20.34 V W68
2023-12-23 01:47:34 C 12 06 04.330 +07 28 46.92 V M22
2023-12-23 01:53:52 C 12 06 04.985 +07 28 19.02 V M22
2023-12-23 02:05:02 C 12 06 06.137 +07 27 29.92 V M22
2023-12-23 02:17:37 C 12 06 07.390 +07 26 33.90 V M22
2023-12-25 08:00:03 C 12 12 03.811 +03 18 40.14 V W68
2023-12-25 08:05:55 C 12 12 04.397 +03 18 12.42 V W68
2023-12-25 08:13:46 C 12 12 05.244 +03 17 35.92 V W68
2023-12-25 08:29:36 C 12 12 06.895 +03 16 19.09 V W68
2023-12-28 13:06:17 C 12 21 04.874 -03 09 10.19 V T08
2023-12-28 13:12:04 C 12 21 05.539 -03 09 40.68 V T08
2023-12-28 13:23:48 C 12 21 06.864 -03 10 42.31 V T08
2023-12-28 13:33:32 C 12 21 07.970 -03 11 33.79 V T08
Radar Observations (10)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2008-01-09 02:12:00 29272278.9 4 us 2380 -1 -1
2008-01-09.091667 2927227890 4000 us 2380 251 251
2008-01-10 01:04:00 19847.14 0.05 Hz 2380 -1 -1
2008-01-10 01:08:00 27936813.1 1 us 2380 -1 -1
2008-01-10.044444 1984714 5 Hz 2380 251 251
2008-01-10.047222 2793681310 1000 us 2380 251 251
2008-01-11 00:52:00 -25527.29 0.05 Hz 2380 -1 -1
2008-01-11 00:58:00 28122839.5 4 us 2380 -1 -1
2008-01-11.036111 -2552729 5 Hz 2380 251 251
2008-01-11.040278 2812283950 4000 us 2380 251 251
Station codes
-1 Arecibo (305-m, 1963–2020)