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
2023-12-05 14:16:12 C 11 24 12.257 +30 24 48.96 V T05
2023-12-05 14:25:06 C 11 24 13.020 +30 24 28.48 V T05
2023-12-05 14:28:22 C 11 24 13.301 +30 24 20.81 V T05
2023-12-05 14:42:51 C 11 24 14.630 +30 23 47.80 V T05
2023-12-05 14:54:29 C 11 24 15.672 +30 23 21.30 V T08
2023-12-05 15:02:15 C 11 24 16.373 +30 23 03.84 V T08
2023-12-05 15:06:26 C 11 24 16.706 +30 22 53.51 V T08
2023-12-05 15:21:22 C 11 24 18.082 +30 22 18.73 V T08
2023-12-07 13:38:47 C 11 28 47.381 +28 29 45.60 V T08
2023-12-07 13:50:05 C 11 28 48.398 +28 29 17.20 V T08
2023-12-07 13:51:27 C 11 28 48.533 +28 29 12.88 V T05
2023-12-07 13:58:23 C 11 28 49.114 +28 28 56.53 V T08
2023-12-07 14:01:46 C 11 28 49.450 +28 28 47.57 V T05
2023-12-07 14:06:20 C 11 28 49.805 +28 28 35.72 V T05
2023-12-07 14:19:18 C 11 28 51.002 +28 28 03.86 V T05
2023-12-07 14:21:54 C 11 28 51.233 +28 27 57.85 V T05
2023-12-07 14:22:16 C 11 28 51.257 +28 27 57.13 V T08
2023-12-07 14:23:51 C 11 28 51.442 +28 27 52.49 V T05
2023-12-07 14:36:36 C 11 28 52.565 +28 27 21.24 V T05
2023-12-07 14:55:47 C 11 28 54.276 +28 26 33.18 V T05
2023-12-08 10:42:40 C 11 30 49.360 +27 35 51.40 V 703
2023-12-08 10:45:40 C 11 30 49.684 +27 35 43.84 V 703
2023-12-08 10:48:40 C 11 30 49.932 +27 35 35.99 V 703
2023-12-08 10:51:39 C 11 30 50.166 +27 35 29.18 V 703
2023-12-08 14:33:21 C 11 31 11.498 +27 25 59.30 V T08
2023-12-08 14:51:29 C 11 31 13.118 +27 25 12.65 V T08
2023-12-08 14:55:28 C 11 31 13.457 +27 25 01.96 V T08
2023-12-08 15:11:32 C 11 31 14.887 +27 24 20.84 V T08
2023-12-09 14:05:23 C 11 33 28.344 +26 23 28.46 V T05
2023-12-09 14:09:58 C 11 33 28.747 +26 23 15.97 V T05
2023-12-09 14:17:22 C 11 33 29.417 +26 22 56.14 V T05
2023-12-09 14:31:57 C 11 33 30.739 +26 22 17.22 V T05
2023-12-10 10:27:34 C 11 35 26.927 +25 27 27.54 V 703
2023-12-10 10:36:28 C 11 35 27.748 +25 27 00.22 V 703
2023-12-10 15:27:46 C 11 35 55.231 +25 13 35.98 V T08
2023-12-10 15:34:26 C 11 35 55.807 +25 13 17.51 V T08
2023-12-10 15:46:24 C 11 35 56.866 +25 12 44.06 V T08
2023-12-10 16:04:20 C 11 35 58.457 +25 11 54.49 V T08
2023-12-11 13:30:35 C 11 38 04.610 +24 10 32.74 V T05
2023-12-11 13:35:10 C 11 38 05.038 +24 10 19.81 V T05
2023-12-11 13:59:41 C 11 38 07.277 +24 09 09.29 V T05
2023-12-11 14:10:23 C 11 38 08.220 +24 08 38.44 V T05
2023-12-12 13:55:31 C 11 40 27.221 +22 58 15.74 V T05
2023-12-12 14:03:29 C 11 40 27.917 +22 57 52.06 V T05
2023-12-12 14:19:45 C 11 40 29.405 +22 57 03.13 V T05
2023-12-13 15:21:04 C 11 42 55.766 +21 40 03.43 V T08
2023-12-13 15:26:09 C 11 42 56.237 +21 39 47.63 V T08
2023-12-13 15:35:36 C 11 42 57.077 +21 39 18.14 V T08
2023-12-14 11:14:26 C 11 44 53.509 +20 36 30.53 V 703
2023-12-14 11:17:24 C 11 44 53.761 +20 36 20.88 V 703
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)