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
2008-01-06 12:02:51 C 06 41 19.11 +55 36 19.8 m 379
2008-01-06 12:03:23 C 06 41 18.34 +55 36 11.7 m 379
2008-01-06 12:03:55 C 06 41 17.69 +55 36 04.6 m 379
2008-01-06 12:06:12 C 06 41 14.59 +55 35 31.9 m 379
2008-01-06 12:06:54 C 06 41 13.64 +55 35 21.8 m 379
2008-01-06 12:07:37 C 06 41 12.69 +55 35 11.8 m 379
2008-01-06 12:09:02 C 06 41 10.81 +55 34 51.6 m 379
2008-01-06 12:09:45 C 06 41 09.86 +55 34 41.4 m 379
2008-01-06 12:10:27 C 06 41 08.90 +55 34 31.4 m 379
2008-01-06 21:38:13 C 06 29 13.52 +53 06 05.8 o 046
2008-01-06 21:39:00 C 06 29 12.52 +53 05 53.1 o 046
2008-01-06 21:39:31 C 06 29 11.83 +53 05 44.4 o 046
2008-01-06 21:40:32 C 06 29 10.54 +53 05 28.0 o 046
2008-01-06 21:41:02 C 06 29 09.84 +53 05 19.2 o 046
2008-01-06 21:41:04 C 06 29 21.91 +53 05 58.7 o J51
2008-01-06 21:41:35 C 06 29 09.14 +53 05 10.2 o 046
2008-01-06 22:04:21 C 06 28 51.48 +52 59 41.5 o J51
2008-01-06 22:27:59 C 06 28 20.43 +52 53 15.4 o J51
2008-01-07 04:28:01 C 06 21 01.00 +51 08 18.7 c 711
2008-01-07 04:31:26 C 06 20 56.58 +51 07 18.4 c 711
2008-01-07 04:34:50 C 06 20 52.18 +51 06 17.0 c 711
2008-01-07 22:04:15 C 06 00 18.58 +45 10 32.9 o B50
2008-01-07 22:20:57 C 05 59 58.66 +45 04 20.9 o B50
2008-01-07 22:30:40 C 05 59 47.09 +45 00 43.3 o B50
2008-01-07 22:31:48 C 05 59 48.31 +45 00 07.3 c J69
2008-01-07 22:32:56 C 05 59 46.96 +44 59 42.1 c J69
2008-01-07 22:34:02 C 05 59 45.62 +44 59 16.8 c J69
2008-01-07 22:34:37 C 05 59 44.93 +44 59 03.7 c J69
2008-01-07 22:35:44 C 05 59 43.62 +44 58 38.9 c J69
2008-01-07 22:36:52 C 05 59 42.26 +44 58 13.6 c J69
2008-01-07 22:38:00 C 05 59 40.93 +44 57 48.2 c J69
2008-01-08 01:32:32 C 05 56 10.71 +43 50 45.7 r 204
2008-01-08 01:33:03 C 05 56 10.13 +43 50 33.8 r 204
2008-01-08 01:33:33 C 05 56 09.54 +43 50 21.9 r 204
2008-01-08 01:34:02 C 05 56 08.97 +43 50 10.0 r 204
2008-01-08 01:34:34 C 05 56 08.38 +43 49 58.0 r 204
2008-01-08 13:02:59 C 05 43 56.89 +39 08 17.2 m 379
2008-01-08 13:03:21 C 05 43 56.49 +39 08 07.9 m 379
2008-01-08 13:04:05 C 05 43 55.65 +39 07 48.4 m 379
2008-01-08 13:04:28 C 05 43 55.22 +39 07 38.6 m 379
2008-01-08 13:06:40 C 05 43 52.68 +39 06 40.8 m 379
2008-01-08 13:07:45 C 05 43 51.42 +39 06 12.8 m 379
2008-01-08 13:08:07 C 05 43 51.03 +39 06 03.6 m 379
2008-01-08 13:09:14 C 05 43 49.69 +39 05 34.3 m 379
2008-01-08 13:09:35 C 05 43 49.34 +39 05 25.1 m 379
2008-01-08 13:23:51 C 05 43 33.00 +38 59 12.2 m 379
2008-01-08 21:51:09 C 05 34 46.24 +35 08 15.3 12.3 r A97
2008-01-08 21:52:16 C 05 34 45.07 +35 07 43.7 12.2 r A97
2008-01-08 21:53:22 C 05 34 43.84 +35 07 12.5 12.2 r A97
2008-01-08 21:54:29 C 05 34 42.67 +35 06 41.2 12.2 r A97
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)