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
2022-12-22 20:52:42 C 23 50 26.61 +61 32 54.8 q Z36
2022-12-22 20:53:11 C 23 50 26.70 +61 32 52.9 q Z36
2022-12-22 20:53:39 C 23 50 26.85 +61 32 51.7 q Z36
2022-12-22 20:54:08 C 23 50 27.06 +61 32 49.9 q Z36
2022-12-22 20:54:35 C 23 50 27.10 +61 32 48.4 q Z36
2022-12-22 20:55:03 C 23 50 27.33 +61 32 46.4 q Z36
2022-12-22 20:55:32 C 23 50 27.42 +61 32 45.2 q Z36
2022-12-22 20:55:59 C 23 50 27.53 +61 32 43.7 q Z36
2022-12-22 20:56:28 C 23 50 27.62 +61 32 41.8 q Z36
2022-12-22 20:56:55 C 23 50 27.76 +61 32 40.0 q Z36
2022-12-22 20:57:23 C 23 50 27.86 +61 32 38.6 q Z36
2022-12-22 20:57:52 C 23 50 27.97 +61 32 36.9 q Z36
2022-12-22 20:58:19 C 23 50 28.16 +61 32 35.3 q Z36
2022-12-22 20:58:48 C 23 50 28.27 +61 32 33.4 q Z36
2022-12-22 20:59:15 C 23 50 28.40 +61 32 31.9 q Z36
2022-12-22 20:59:43 C 23 50 28.53 +61 32 30.5 q Z36
2022-12-22 21:00:12 C 23 50 28.64 +61 32 28.8 q Z36
2022-12-22 21:00:39 C 23 50 28.79 +61 32 27.1 q Z36
2022-12-22 21:01:08 C 23 50 28.96 +61 32 25.5 q Z36
2022-12-22 21:01:35 C 23 50 29.08 +61 32 23.8 q Z36
2022-12-22 21:02:04 C 23 50 29.22 +61 32 22.6 q Z36
2022-12-22 21:02:32 C 23 50 29.31 +61 32 21.0 q Z36
2022-12-22 21:03:00 C 23 50 29.47 +61 32 19.0 q Z36
2022-12-22 21:03:29 C 23 50 29.52 +61 32 17.7 q Z36
2022-12-22 21:03:56 C 23 50 29.69 +61 32 16.0 q Z36
2022-12-22 21:04:25 C 23 50 29.79 +61 32 14.1 q Z36
2022-12-22 21:04:52 C 23 50 29.93 +61 32 12.6 q Z36
2022-12-22 21:05:21 C 23 50 30.02 +61 32 10.8 q Z36
2022-12-22 21:05:49 C 23 50 30.17 +61 32 09.5 q Z36
2022-12-22 21:06:16 C 23 50 30.37 +61 32 07.6 q Z36
2022-12-22 21:06:45 C 23 50 30.45 +61 32 06.2 q Z36
2022-12-22 21:07:12 C 23 50 30.57 +61 32 04.3 q Z36
2022-12-22 21:07:41 C 23 50 30.73 +61 32 02.8 q Z36
2022-12-22 21:08:09 C 23 50 30.82 +61 32 01.3 q Z36
2022-12-22 21:08:36 C 23 50 30.95 +61 31 59.5 q Z36
2022-12-22 21:21:42 C 23 50 34.52 +61 31 13.9 q Z36
2022-12-22 21:23:06 C 23 50 34.91 +61 31 08.6 q Z36
2022-12-22 21:24:02 C 23 50 35.23 +61 31 05.8 q Z36
2022-12-22 21:24:31 C 23 50 35.33 +61 31 03.7 q Z36
2022-12-22 21:25:56 C 23 50 35.66 +61 30 58.5 q Z36
2022-12-22 21:26:23 C 23 50 35.80 +61 30 57.6 q Z36
2022-12-22 21:26:52 C 23 50 35.11 +61 30 54.7 q Z36
2022-12-22 21:27:19 C 23 50 36.07 +61 30 53.9 q Z36
2022-12-22 21:27:48 C 23 50 36.18 +61 30 52.6 q Z36
2022-12-22 21:28:16 C 23 50 36.30 +61 30 51.2 q Z36
2022-12-22 21:28:43 C 23 50 36.44 +61 30 49.1 q Z36
2022-12-22 21:29:13 C 23 50 36.56 +61 30 47.6 q Z36
2022-12-22 21:29:40 C 23 50 36.71 +61 30 46.0 q Z36
2022-12-22 21:30:09 C 23 50 36.84 +61 30 44.5 q Z36
2022-12-22 21:30:36 C 23 50 36.96 +61 30 42.8 q Z36
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)