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
2022-01-08 06:23:21 C 00 10 57.18 +25 05 33.9 V T05
2022-01-08 06:27:58 C 00 10 57.92 +25 05 29.7 V T05
2022-01-08 06:35:55 C 00 10 59.29 +25 05 23.2 V T05
2022-01-08 06:53:09 C 00 11 02.23 +25 05 08.7 V T05
2022-01-12 05:03:11 C 00 27 17.37 +23 46 28.3 V T05
2022-01-12 05:07:48 C 00 27 18.12 +23 46 24.5 V T05
2022-01-12 05:17:42 C 00 27 19.76 +23 46 15.4 V T05
2022-01-12 05:34:53 C 00 27 22.66 +23 46 01.4 V T05
2022-01-14 02:52:01 C 00 35 05.97 +23 07 34.9 V 703
2022-01-14 02:59:49 C 00 35 07.26 +23 07 28.2 V 703
2022-01-14 03:07:38 C 00 35 08.50 +23 07 21.4 V 703
2022-01-14 03:15:26 C 00 35 09.77 +23 07 14.7 V 703
2022-01-24 03:28:10 C 01 14 58.83 +19 39 04.2 V 703
2022-01-24 03:35:42 C 01 14 59.99 +19 38 57.4 V 703
2022-01-24 03:43:15 C 01 15 01.27 +19 38 49.7 V 703
2022-01-24 03:50:48 C 01 15 02.43 +19 38 44.0 V 703
2022-01-24 07:30:37 C 01 15 37.75 +19 35 32.3 V T05
2022-01-24 07:35:15 C 01 15 38.49 +19 35 28.4 V T05
2022-01-24 07:43:10 C 01 15 39.73 +19 35 22.3 V T05
2022-01-24 07:59:00 C 01 15 42.30 +19 35 07.9 V T05
2022-01-27 03:16:52 C 01 26 29.03 +18 35 43.1 V 703
2022-01-27 03:24:28 C 01 26 30.18 +18 35 36.1 V 703
2022-01-27 03:32:05 C 01 26 31.42 +18 35 29.4 V 703
2022-01-27 03:39:42 C 01 26 32.62 +18 35 22.0 V 703
2022-01-30 01:43:52 C 01 37 35.00 +17 33 13.6 q H45
2022-01-30 01:46:26 C 01 37 35.44 +17 33 10.8 q H45
2022-01-30 01:50:31 C 01 37 36.08 +17 33 07.2 q H45
2022-02-03 02:41:22 C 01 52 32.93 +16 06 50.5 V 703
2022-02-03 03:05:51 C 01 52 36.72 +16 06 30.0 V 703
2022-02-14 03:39:44 C 02 31 31.98 +12 08 48.4 V 703
2022-02-14 03:47:21 C 02 31 33.03 +12 08 40.5 V 703
2022-02-14 03:54:57 C 02 31 34.12 +12 08 34.3 V 703
2022-02-14 04:02:35 C 02 31 35.12 +12 08 27.3 V 703
2022-03-01 03:20:28 C 03 19 46.16 +06 40 14.0 V 703
2022-03-01 03:27:20 C 03 19 46.98 +06 40 07.9 V 703
2022-03-01 03:34:12 C 03 19 47.88 +06 40 01.4 V 703
2022-03-01 03:41:03 C 03 19 48.64 +06 39 54.1 V 703
2022-03-12 02:27:24 C 03 51 37.41 +02 34 49.3 V G96
2022-03-12 02:34:57 C 03 51 38.27 +02 34 42.3 V G96
2022-03-12 02:42:28 C 03 51 39.11 +02 34 35.2 V G96
2022-03-12 02:50:00 C 03 51 39.98 +02 34 28.2 V G96
2022-03-27 03:09:29 C 04 30 08.72 -03 11 03.9 V 703
2022-03-27 03:17:21 C 04 30 09.41 -03 11 10.4 V 703
2022-03-27 03:25:13 C 04 30 10.14 -03 11 18.7 V 703
2022-03-27 03:33:06 C 04 30 10.84 -03 11 26.3 V 703
2022-07-11 11:10:58 C 03 31 37.241 +37 31 49.30 U I41
2022-07-11 11:14:30 C 03 31 36.979 +37 32 04.31 U I41
2022-07-11 11:18:04 C 03 31 36.730 +37 32 19.10 U I41
2022-07-11 11:25:10 C 03 31 36.199 +37 32 49.09 U I41
2022-07-12 11:11:05 C 03 29 59.950 +39 09 12.31 U I41
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)