8567 (1996 HW1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4490939396 ± 2.75e-09
Semi-major axis (a)2.0456735689 AU ± 2.83e-09
Inclination (i)8.44895522° ± 1.22e-06
Long. of Asc. Node (Ω)177.09285092° ± 3.68e-06
Arg. of Perihelion (ω)177.28234728° ± 4.78e-06
Mean Anomaly (M)314.32050003° ± 4.72e-06
Mean Motion (n)0.3368664620°/day ± 7.00e-10
Perihelion dist (q)1.12697397 AU ± 5.84e-09
Aphelion dist (Q)2.96437317 AU ± 6.96e-09
Orbital Period2.92586646 yr ± 6.08e-09
Physical Parameters
H (abs. magnitude)15.36
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.475″
Uncertainty0
Orbit TypeAmor
MOID0.120293 AU
Observations Used5269
Radar Obs Used12
Gaia Obs Used119
Oppositions41
Arc Total1955-2025
First Observation Used1955-05-23
Last Observation Used2025-06-23
Observations (6356)
Date Type RA Dec Mag Band Observatory
1998-02-20 23:56:36 C 10 40 24.56 +03 40 36.6 046
1998-02-21 00:06:32 C 10 40 24.07 +03 40 39.8 557
1998-02-21 00:19:48 C 10 40 23.46 +03 40 44.1 557
1998-02-21 02:16:36 C 10 40 18.18 +03 41 24.9 557
1998-02-21 22:50:51 C 10 39 24.25 +03 48 27.6 046
1998-02-21 22:56:19 C 10 39 23.99 +03 48 29.9 046
1998-02-21 23:03:41 C 10 39 23.66 +03 48 32.3 046
1998-02-25 09:38:53 C 10 35 44.93 +04 17 16.8 t 566
1998-02-25 09:53:09 C 10 35 44.20 +04 17 22.0 t 566
1998-02-25 10:08:32 C 10 35 43.57 +04 17 27.0 t 566
1998-03-01 16:05:14 C 10 31 13.72 +04 53 21.4 360
1998-03-01 16:29:15 C 10 31 12.65 +04 53 29.8 360
1998-03-01 16:36:59 C 10 31 12.29 +04 53 32.9 360
1998-03-02 14:56:00 C 10 30 13.83 +05 01 25.1 z 402
1998-03-02 15:00:00 C 10 30 13.64 +05 01 27.1 z 402
1998-03-02 15:04:01 C 10 30 13.47 +05 01 28.6 z 402
1998-03-03 04:50:04 C 10 29 37.53 +05 06 18.1 18.6 a 704
1998-03-03 05:19:26 C 10 29 36.34 +05 06 31.2 18.8 a 704
1998-03-03 05:49:07 C 10 29 34.90 +05 06 39.6 18.7 a 704
1998-03-03 06:18:19 C 10 29 33.44 +05 06 52.7 19.1 a 704
1998-03-03 12:06:33 C 10 29 18.69 +05 08 55.3 z 402
1998-03-03 12:10:34 C 10 29 18.66 +05 08 55.3 z 402
1998-03-03 12:18:06 C 10 29 18.12 +05 08 57.8 z 402
1999-05-12 07:06:00 C 15 44 33.05 -06 09 19.2 18.2 a 704
1999-05-12 07:24:38 C 15 44 32.03 -06 09 11.5 18.5 a 704
1999-05-12 07:43:20 C 15 44 30.96 -06 09 03.3 18.1 a 704
1999-05-12 08:02:00 C 15 44 30.10 -06 08 56.5 18.1 a 704
1999-05-12 08:20:39 C 15 44 29.10 -06 08 48.8 18.1 a 704
1999-05-17 08:19:20 C 15 38 13.21 -05 22 19.9 18.0 a 704
1999-05-17 08:36:55 C 15 38 12.35 -05 22 13.0 18.0 a 704
1999-05-17 08:54:30 C 15 38 11.30 -05 22 05.8 17.9 a 704
1999-05-21 06:17:13 C 15 33 06.62 -04 47 41.8 18.2 a 704
1999-05-21 06:31:22 C 15 33 05.84 -04 47 34.5 18.6 a 704
1999-05-21 06:59:57 C 15 33 04.20 -04 47 24.7 17.6 a 704
1999-05-21 07:14:13 C 15 33 03.41 -04 47 18.0 18.0 a 704
1999-06-02 21:50:36 C 15 16 36.90 -03 13 47.5 c 118
1999-06-02 21:53:57 C 15 16 36.73 -03 13 45.6 c 118
1999-06-08 07:24:09 C 15 10 10.37 -02 45 03.7 18.0 a 704
1999-06-08 07:26:24 C 15 10 10.32 -02 45 03.0 c 699
1999-06-08 07:37:39 C 15 10 09.69 -02 45 01.8 18.2 a 704
1999-06-08 07:51:03 C 15 10 09.05 -02 44 58.7 18.1 a 704
1999-06-08 08:04:27 C 15 10 08.39 -02 44 55.9 18.3 a 704
1999-06-08 08:10:25 C 15 10 08.21 -02 44 54.3 c 699
1999-06-08 08:17:51 C 15 10 07.73 -02 44 53.2 18.2 a 704
1999-06-08 08:54:27 C 15 10 06.02 -02 44 45.0 c 699
1999-06-14 04:08:56 C 15 03 59.39 -02 23 11.3 17.8 a 704
1999-06-14 04:26:41 C 15 03 58.61 -02 23 09.4 18.2 a 704
1999-06-14 04:44:25 C 15 03 57.87 -02 23 06.9 18.2 a 704
1999-06-14 05:02:19 C 15 03 57.11 -02 23 04.9 18.5 a 704
1999-06-14 05:20:04 C 15 03 56.36 -02 23 03.0 18.3 a 704
Radar Observations (18)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2008-09-15 06:16:00 135226140.2 1 us 2380 -1 -1
2008-09-15 06:16:00 -10482.845 0.48 Hz 2380 -1 -1
2008-09-15.261111 13522614020 1000 us 2380 251 251
2008-09-16 06:25:00 135665183.75 2 us 2380 -1 -1
2008-09-16 06:25:00 -14640.891 0.48 Hz 2380 -1 -1
2008-09-16.267361 13566518375 2000 us 2380 251 251
2008-09-17 06:22:00 136241112.51 1 us 2380 -1 -1
2008-09-17 06:22:00 -18352.48 0.48 Hz 2380 -1 -1
2008-09-17.265278 13624111251 1000 us 2380 251 251
2008-09-18 06:04:00 136946748.12 1 us 2380 -1 -1
2008-09-18 06:04:00 -21511.747 0.48 Hz 2380 -1 -1
2008-09-18.252778 13694674812 1000 us 2380 251 251
2008-09-19 06:14:00 137803137.95 1 us 2380 -1 -1
2008-09-19 06:14:00 -25527.245 0.48 Hz 2380 -1 -1
2008-09-19.259722 13780313795 1000 us 2380 251 251
2008-09-21 05:39:00 139875021 1 us 2380 -1 -1
2008-09-21 05:39:00 -31553.962 0.48 Hz 2380 -1 -1
2008-09-21.235417 13987502100 1000 us 2380 251 251
Station codes
-1 Arecibo (305-m, 1963–2020)