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
2008-01-08 21:55:35 C 05 34 41.46 +35 06 10.0 12.2 r A97
2008-01-08 21:56:41 C 05 34 40.27 +35 05 38.8 12.2 r A97
2008-01-08 21:57:48 C 05 34 39.06 +35 05 08.0 12.2 r A97
2008-01-08 21:58:54 C 05 34 37.87 +35 04 36.4 12.2 r A97
2008-01-08 22:00:00 C 05 34 36.67 +35 04 05.3 12.2 r A97
2008-01-08 22:01:06 C 05 34 35.48 +35 03 34.1 12.2 r A97
2008-01-08 23:15:27 C 05 33 23.65 +34 30 11.4 r J46
2008-01-08 23:22:23 C 05 33 16.03 +34 26 54.7 r J46
2008-01-08 23:24:01 C 05 33 14.25 +34 26 08.1 r J46
2008-01-09 01:13:05 C 05 31 38.65 +33 31 47.3 r 726
2008-01-09 01:17:17 C 05 31 34.27 +33 29 48.1 r 726
2008-01-09 01:21:27 C 05 31 29.92 +33 27 48.9 r 726
2008-01-09 01:25:38 C 05 31 25.56 +33 25 49.8 r 726
2008-01-09 01:29:48 C 05 31 21.18 +33 23 50.8 r 726
2008-01-09 12:59:26 C 05 20 03.04 +27 40 15.2 355
2008-01-09 13:00:15 C 05 20 02.20 +27 39 49.7 355
2008-01-09 13:01:05 C 05 20 01.35 +27 39 23.7 355
2008-01-09 13:01:55 C 05 20 00.50 +27 38 58.1 355
2008-01-09 13:02:45 C 05 19 59.66 +27 38 32.3 355
2008-01-09 13:03:33 C 05 19 58.83 +27 38 07.0 355
2008-01-09 20:21:35 C 05 13 30.59 +23 47 55.6 r J46
2008-01-09 20:25:51 C 05 13 26.48 +23 45 40.4 r J46
2008-01-09 20:34:29 C 05 13 11.10 +23 40 02.9 d A77
2008-01-09 20:37:10 C 05 13 08.49 +23 38 36.7 d A77
2008-01-09 20:39:47 C 05 13 05.96 +23 37 13.9 d A77
2008-01-09 20:42:57 C 05 13 02.90 +23 35 32.0 d A77
2008-01-09 20:44:52 C 05 13 08.01 +23 35 36.7 r J46
2008-01-09 20:45:26 C 05 13 00.52 +23 34 13.1 d A77
2008-01-09 20:50:31 C 05 12 55.59 +23 31 30.4 d A77
2008-01-09 20:54:48 C 05 12 51.42 +23 29 12.7 d A77
2008-01-09 23:20:24 C 05 10 30.06 +22 10 42.1 c 595
2008-01-09 23:28:38 C 05 10 22.33 +22 06 14.3 c 595
2008-01-09 23:32:40 C 05 10 18.55 +22 04 03.1 c 595
2008-01-10 02:12:33 C 05 08 16.67 +20 38 36.7 r H45
2008-01-10 02:12:46 C 05 08 16.47 +20 38 29.6 r H45
2008-01-10 02:13:04 C 05 08 16.19 +20 38 20.4 r H45
2008-01-10 02:13:18 C 05 08 15.98 +20 38 12.9 r H45
2008-01-10 02:16:42 C 05 08 12.76 +20 36 22.5 r H45
2008-01-10 02:17:04 C 05 08 12.40 +20 36 11.4 r H45
2008-01-10 02:17:19 C 05 08 12.17 +20 36 03.0 r H45
2008-01-10 02:17:33 C 05 08 11.95 +20 35 55.0 r H45
2008-01-10 02:17:45 C 05 08 11.75 +20 35 48.7 r H45
2008-01-10 02:17:57 C 05 08 11.58 +20 35 42.3 r H45
2008-01-10 02:18:21 C 05 08 11.21 +20 35 29.1 r H45
2008-01-10 02:20:29 C 05 08 09.18 +20 34 20.6 r H45
2008-01-10 02:20:53 C 05 08 08.83 +20 34 07.4 r H45
2008-01-10 02:21:07 C 05 08 08.61 +20 34 00.1 r H45
2008-01-10 02:21:58 C 05 08 07.79 +20 33 32.6 r H45
2008-01-10 02:32:05 C 05 07 58.24 +20 28 04.7 r H45
2008-01-10 02:32:23 C 05 07 57.96 +20 27 55.2 r H45
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)