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
2020-12-16 05:10:51 C 22 00 36.318 +18 11 11.33 U F51
2020-12-16 05:29:49 C 22 00 39.259 +18 11 14.68 U F51
2020-12-16 05:47:30 C 22 00 42.002 +18 11 17.76 U F51
2020-12-24 05:09:22 C 22 31 02.171 +18 43 38.01 U F51
2020-12-24 05:27:59 C 22 31 05.094 +18 43 40.63 U F51
2020-12-24 05:46:41 C 22 31 08.038 +18 43 43.24 U F51
2020-12-24 06:05:18 C 22 31 10.949 +18 43 45.76 U F51
2021-02-05 02:31:52 C 01 16 34.27 +19 11 12.8 V 703
2021-02-05 02:54:50 C 01 16 37.78 +19 11 06.8 V 703
2021-02-10 05:39:03 C 01 36 05.910 +18 54 14.52 U F51
2021-02-10 05:46:29 C 01 36 07.058 +18 54 13.28 U F51
2021-02-10 05:53:54 C 01 36 08.217 +18 54 11.90 U F51
2021-08-01 06:05:38 C 12 26 32.30 +12 49 59.3 V T05
2021-08-01 06:10:54 C 12 26 33.92 +12 50 15.5 V T05
2021-08-01 06:18:48 C 12 26 36.33 +12 50 39.0 V T05
2021-08-01 06:34:38 C 12 26 41.12 +12 51 26.4 V T05
2021-08-09 06:01:37 C 13 26 35.77 +22 17 45.6 V T05
2021-08-09 06:07:34 C 13 26 37.55 +22 18 01.8 V T05
2021-08-09 06:15:28 C 13 26 39.98 +22 18 23.9 V T05
2021-08-09 06:21:25 C 13 26 41.73 +22 18 39.6 V T05
2021-08-09 06:26:05 C 13 26 43.16 +22 18 51.7 V T05
2021-08-09 06:30:41 C 13 26 44.65 +22 19 05.3 V T05
2021-08-09 06:33:59 C 13 26 45.58 +22 19 14.3 V T05
2021-08-09 06:49:14 C 13 26 50.33 +22 19 56.5 V T05
2021-08-15 06:30:27 C 14 10 33.70 +28 21 28.3 V T08
2021-08-15 06:35:06 C 14 10 34.99 +28 21 38.7 V T08
2021-08-15 06:43:04 C 14 10 37.37 +28 21 56.2 V T08
2021-08-15 07:03:40 C 14 10 43.26 +28 22 40.9 V T08
2021-08-17 06:29:49 C 14 24 29.28 +30 04 09.7 V T05
2021-08-17 06:34:26 C 14 24 30.57 +30 04 19.2 V T05
2021-08-17 06:43:01 C 14 24 32.97 +30 04 36.0 V T05
2021-08-17 06:57:31 C 14 24 37.03 +30 05 04.9 V T05
2021-08-23 21:23:51 C 15 07 18.56 +34 38 25.0 V Z80
2021-08-23 21:30:26 C 15 07 20.25 +34 38 34.2 V Z80
2021-08-23 21:37:01 C 15 07 21.88 +34 38 43.3 V Z80
2021-08-24 21:15:28 C 15 13 16.08 +35 11 34.5 V Z80
2021-08-24 21:22:08 C 15 13 17.71 +35 11 42.9 V Z80
2021-08-24 21:28:48 C 15 13 19.39 +35 11 51.9 V Z80
2021-08-26 03:56:47 C 15 20 44.69 +35 51 35.6 V 703
2021-08-26 04:04:43 C 15 20 46.54 +35 51 43.6 V 703
2021-08-26 04:12:40 C 15 20 48.35 +35 51 54.2 V 703
2021-08-26 04:20:36 C 15 20 50.19 +35 52 03.0 V 703
2021-08-26 06:02:05 C 15 21 14.97 +35 54 19.2 V T05
2021-08-26 06:10:02 C 15 21 16.80 +35 54 28.9 V T05
2021-08-26 06:19:17 C 15 21 18.91 +35 54 40.2 V T05
2021-08-26 06:41:08 C 15 21 24.02 +35 55 06.0 V T05
2021-08-29 19:50:44 C 15 41 03.50 +37 29 35.3 V B38
2021-08-29 19:55:36 C 15 41 04.65 +37 29 39.2 V L63
2021-08-29 19:58:12 C 15 41 05.18 +37 29 41.3 V B38
2021-08-29 20:06:07 C 15 41 06.87 +37 29 49.7 V B38
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)