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
2008-01-03 02:33:50 C 08 25 32.92 +67 05 11.9 o H51
2008-01-03 02:34:28 C 08 25 32.11 +67 05 09.3 o H51
2008-01-03 02:35:07 C 08 25 31.34 +67 05 07.0 o H51
2008-01-03 02:35:45 C 08 25 30.55 +67 05 04.6 o H51
2008-01-03 02:36:23 C 08 25 29.77 +67 05 02.4 o H51
2008-01-03 02:37:01 C 08 25 29.03 +67 05 00.1 o H51
2008-01-03 02:37:39 C 08 25 28.21 +67 04 57.5 o H51
2008-01-03 02:38:17 C 08 25 27.44 +67 04 55.3 o H51
2008-01-03 09:47:49 C 08 16 15.59 +66 35 00.7 r H45
2008-01-03 09:50:36 C 08 16 11.93 +66 34 47.1 r H45
2008-01-03 09:51:52 C 08 16 10.23 +66 34 40.7 r H45
2008-01-03 09:52:56 C 08 16 08.87 +66 34 35.5 r H45
2008-01-03 09:54:21 C 08 16 06.77 +66 34 28.2 r H45
2008-01-03 19:16:25 C 08 04 23.46 +65 47 01.6 m 379
2008-01-03 19:18:36 C 08 04 20.59 +65 46 48.7 m 379
2008-01-03 19:20:48 C 08 04 17.65 +65 46 35.9 m 379
2008-01-03 19:23:00 C 08 04 14.78 +65 46 23.1 m 379
2008-01-03 19:37:25 C 08 03 55.69 +65 44 57.8 m 379
2008-01-03 19:38:32 C 08 03 54.18 +65 44 51.1 m 379
2008-01-03 19:39:14 C 08 04 28.74 +65 43 50.1 o 151
2008-01-03 19:39:38 C 08 03 52.75 +65 44 44.7 m 379
2008-01-03 19:40:15 C 08 04 27.44 +65 43 44.9 o 151
2008-01-03 19:41:16 C 08 04 26.13 +65 43 39.8 o 151
2008-01-03 19:41:50 C 08 03 49.90 +65 44 31.5 m 379
2008-01-03 19:42:16 C 08 04 24.83 +65 43 34.7 o 151
2008-01-03 19:43:18 C 08 04 23.54 +65 43 29.6 o 151
2008-01-03 19:44:02 C 08 03 47.03 +65 44 18.8 m 379
2008-01-03 19:44:18 C 08 04 22.24 +65 43 24.4 o 151
2008-01-03 19:45:20 C 08 04 20.91 +65 43 19.4 o 151
2008-01-03 22:42:05 C 08 00 38.91 +65 27 56.8 c J39
2008-01-03 22:43:13 C 08 00 37.51 +65 27 50.9 c J39
2008-01-03 22:44:19 C 08 00 35.95 +65 27 44.3 c J39
2008-01-03 22:45:26 C 08 00 34.46 +65 27 38.4 c J39
2008-01-04 14:25:59 C 07 40 14.53 +63 45 11.1 m 379
2008-01-04 14:41:13 C 07 39 53.24 +63 43 19.4 m 379
2008-01-04 14:42:07 C 07 39 52.02 +63 43 12.6 m 379
2008-01-04 14:43:03 C 07 39 50.69 +63 43 06.6 m 379
2008-01-04 14:44:52 C 07 39 48.18 +63 42 53.2 m 379
2008-01-05 05:01:36 C 07 21 14.31 +61 42 40.0 726
2008-01-05 05:06:57 C 07 21 06.89 +61 41 51.1 726
2008-01-05 05:11:08 C 07 21 01.11 +61 41 13.0 726
2008-01-06 11:56:34 C 06 41 27.50 +55 37 48.9 m 379
2008-01-06 11:56:55 C 06 41 27.01 +55 37 43.7 m 379
2008-01-06 11:58:01 C 06 41 25.53 +55 37 28.1 m 379
2008-01-06 11:58:24 C 06 41 25.05 +55 37 22.8 m 379
2008-01-06 11:58:45 C 06 41 24.54 +55 37 17.6 m 379
2008-01-06 11:59:08 C 06 41 24.06 +55 37 12.4 m 379
2008-01-06 11:59:29 C 06 41 23.56 +55 37 07.2 m 379
2008-01-06 12:01:15 C 06 41 21.26 +55 36 42.7 m 379
2008-01-06 12:01:47 C 06 41 20.53 +55 36 35.0 m 379
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)