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
2022-07-12 11:14:39 C 03 29 59.710 +39 09 26.78 U I41
2022-07-12 11:18:11 C 03 29 59.450 +39 09 41.40 U I41
2022-07-12 11:21:46 C 03 29 59.210 +39 09 55.80 U I41
2022-07-12 11:25:20 C 03 29 58.951 +39 10 10.49 U I41
2022-09-25 14:52:04 C 09 59 06.754 +85 42 45.11 V T05
2022-09-25 14:56:52 C 09 59 10.318 +85 42 45.54 V T05
2022-09-25 15:08:14 C 09 59 18.614 +85 42 46.37 V T05
2022-09-25 15:20:00 C 09 59 26.100 +85 42 45.97 V T05
2022-10-06 02:14:49 S 12 26 20.33 +84 43 22.3 L C51
2022-10-06 14:45:43 S 12 31 49.997 +84 39 08.24 L C51
2022-10-06 14:45:54 S 12 31 49.57 +84 39 08.6 L C51
2022-10-06 16:19:36 S 12 32 29.74 +84 38 35.5 L C51
2022-10-06 17:53:29 S 12 33 11.65 +84 38 03.1 L C51
2022-10-06 19:27:22 S 12 33 53.10 +84 37 32.4 L C51
2022-10-06 21:01:15 S 12 34 31.843 +84 36 59.15 L C51
2022-10-06 22:35:08 S 12 35 11.203 +84 36 27.50 L C51
2022-10-07 09:32:19 S 12 39 48.720 +84 32 40.96 L C51
2022-10-19 05:17:46 C 14 14 31.438 +82 55 27.66 V T05
2022-10-19 05:22:22 C 14 14 32.868 +82 55 25.36 V T05
2022-10-19 05:33:35 C 14 14 35.717 +82 55 20.17 V T05
2022-10-19 05:46:41 C 14 14 39.809 +82 55 15.10 V T05
2022-10-23 05:17:46 C 14 40 53.182 +82 26 52.12 V T05
2022-10-23 05:29:33 C 14 40 56.506 +82 26 48.26 V T05
2022-10-23 05:51:46 C 14 41 02.220 +82 26 39.95 V T05
2022-10-23 05:56:21 C 14 41 03.929 +82 26 37.90 V T05
2022-11-22 04:57:26 C 18 33 39.530 +80 08 21.05 V T08
2022-11-22 05:02:05 C 18 33 41.278 +80 08 19.14 V T08
2022-11-22 05:17:24 C 18 33 47.818 +80 08 13.09 V T08
2022-11-22 05:25:26 C 18 33 51.362 +80 08 10.39 V T08
2022-12-02 06:27:27 C 20 30 30.679 +78 01 05.59 V T05
2022-12-02 06:37:57 C 20 30 35.724 +78 00 55.58 V T05
2022-12-02 06:45:49 C 20 30 39.646 +78 00 47.95 V T05
2022-12-06 04:48:18 C 21 16 44.774 +76 24 46.55 V T05
2022-12-06 04:55:01 C 21 16 47.846 +76 24 38.41 V T05
2022-12-06 05:02:13 C 21 16 50.950 +76 24 28.62 V T05
2022-12-22 20:45:42 C 23 50 24.73 +61 33 19.4 q Z36
2022-12-22 20:46:09 C 23 50 24.86 +61 33 17.5 q Z36
2022-12-22 20:46:38 C 23 50 24.98 +61 33 15.8 q Z36
2022-12-22 20:47:06 C 23 50 25.06 +61 33 14.3 q Z36
2022-12-22 20:47:35 C 23 50 25.21 +61 33 13.0 q Z36
2022-12-22 20:48:02 C 23 50 25.41 +61 33 11.1 q Z36
2022-12-22 20:48:31 C 23 50 25.48 +61 33 09.5 q Z36
2022-12-22 20:48:59 C 23 50 25.60 +61 33 07.8 q Z36
2022-12-22 20:49:26 C 23 50 25.74 +61 33 06.2 q Z36
2022-12-22 20:49:55 C 23 50 25.86 +61 33 04.6 q Z36
2022-12-22 20:50:22 C 23 50 25.98 +61 33 03.0 q Z36
2022-12-22 20:50:51 C 23 50 26.12 +61 33 01.3 q Z36
2022-12-22 20:51:19 C 23 50 26.21 +61 32 59.7 q Z36
2022-12-22 20:51:46 C 23 50 26.36 +61 32 58.1 q Z36
2022-12-22 20:52:15 C 23 50 26.48 +61 32 56.8 q Z36
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)