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
2007-12-26 19:23:01 C 10 43 34.14 +70 10 47.6 m 379
2007-12-28 09:12:48 C 10 24 57.25 +70 13 44.8 14.8 c 704
2007-12-28 09:31:14 C 10 24 45.80 +70 13 47.0 15.1 c 704
2007-12-28 09:49:39 C 10 24 34.29 +70 13 48.2 14.9 c 704
2007-12-28 10:08:04 C 10 24 22.74 +70 13 49.4 15.2 c 704
2007-12-28 10:26:40 C 10 24 11.01 +70 13 49.8 15.0 c 704
2007-12-28 21:17:36 C 10 18 01.76 +70 11 22.2 o J44
2007-12-28 21:41:08 C 10 17 47.70 +70 11 25.9 o J44
2007-12-28 22:10:02 C 10 17 30.21 +70 11 30.4 o J44
2007-12-29 02:37:32 C 10 14 34.70 +70 11 51.5 o B19
2007-12-29 02:39:13 C 10 14 33.26 +70 11 51.6 o B19
2007-12-29 02:40:54 C 10 14 32.41 +70 11 50.7 o B19
2007-12-30 10:53:55 C 09 51 56.67 +69 59 28.4 r H45
2007-12-30 10:54:46 C 09 51 55.96 +69 59 27.4 r H45
2007-12-30 10:56:51 C 09 51 54.21 +69 59 25.8 r H45
2007-12-30 10:58:14 C 09 51 53.05 +69 59 24.8 r H45
2007-12-30 10:59:41 C 09 51 51.83 +69 59 23.7 r H45
2007-12-30 11:01:31 C 09 51 50.24 +69 59 22.2 r H45
2007-12-30 11:02:27 C 09 51 49.45 +69 59 21.5 r H45
2007-12-31 10:24:10 C 09 32 30.01 +69 39 02.0 r H45
2007-12-31 10:25:25 C 09 32 28.83 +69 39 00.4 r H45
2007-12-31 10:27:40 C 09 32 26.64 +69 38 57.6 r H45
2007-12-31 10:29:04 C 09 32 25.25 +69 38 55.7 r H45
2007-12-31 10:30:12 C 09 32 24.19 +69 38 54.3 r H45
2007-12-31 10:32:50 C 09 32 21.68 +69 38 51.0 r H45
2007-12-31 16:45:23 C 09 26 56.33 +69 31 16.4 m 379
2007-12-31 16:47:29 C 09 26 54.14 +69 31 13.9 m 379
2007-12-31 17:16:30 C 09 26 25.07 +69 30 37.7 m 379
2007-12-31 17:47:36 C 09 25 53.67 +69 29 56.0 m 379
2008-01-01 17:12:07 C 09 02 49.45 +68 48 58.0 355
2008-01-01 17:14:27 C 09 02 46.82 +68 48 52.7 355
2008-01-01 17:16:46 C 09 02 44.13 +68 48 47.3 355
2008-01-01 17:19:05 C 09 02 41.54 +68 48 42.3 355
2008-01-01 17:21:23 C 09 02 38.82 +68 48 37.1 355
2008-01-01 17:22:33 C 09 02 37.61 +68 48 34.3 355
2008-01-01 19:14:13 C 09 00 31.03 +68 44 09.5 m 379
2008-01-01 19:15:09 C 09 00 30.07 +68 44 07.3 m 379
2008-01-01 19:18:48 C 09 00 25.89 +68 43 57.9 m 379
2008-01-01 19:19:43 C 09 00 24.89 +68 43 55.6 m 379
2008-01-01 19:32:14 C 09 00 10.66 +68 43 23.5 m 379
2008-01-01 19:34:05 C 09 00 08.55 +68 43 18.7 m 379
2008-01-01 19:36:50 C 09 00 05.48 +68 43 11.7 m 379
2008-01-02 10:09:14 C 08 44 12.50 +68 04 39.3 r H45
2008-01-02 10:11:26 C 08 44 09.82 +68 04 32.3 r H45
2008-01-02 10:12:25 C 08 44 08.65 +68 04 28.6 r H45
2008-01-02 10:16:09 C 08 44 04.18 +68 04 16.1 r H45
2008-01-02 10:17:12 C 08 44 02.89 +68 04 12.6 r H45
2008-01-02 10:18:16 C 08 44 01.59 +68 04 09.1 r H45
2008-01-03 02:32:34 C 08 25 34.44 +67 05 16.3 o H51
2008-01-03 02:33:12 C 08 25 33.69 +67 05 14.2 o H51
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)