2063 Bacchus (1977 HB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3494289066 ± 2.00e+00
Semi-major axis (a)1.0779986113 AU ± 3.00e+00
Inclination (i)9.43469494° ± 4.00e+00
Long. of Asc. Node (Ω)33.03636030° ± 5.00e+00
Arg. of Perihelion (ω)55.35066867° ± 6.00e+00
Mean Anomaly (M)234.78705685° ± 2.00e-05
Mean Motion (n)0.8806127601°/day ± 3.68e+00
Perihelion dist (q)0.70131474 AU ± 2.91e+00
Aphelion dist (Q)1.45468249 AU ± 4.59e+00
Orbital Period1.11925051 yr ± 4.67e+00
NGA Modelr2
A2-3.62707582e-06 AU/d²
Physical Parameters
H (abs. magnitude)17.21
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.501″
Uncertainty0
Orbit TypeApollo
MOID0.067153 AU
Observations Used1463
Radar Obs Used7
Gaia Obs Used54
Oppositions4
Arc Total1977-2025
First Observation Used1977-04-24
Last Observation Used2025-06-15
Observations (1537)
Date Type RA Dec Mag Band Observatory
1996-03-22 02:04:57 C 21 07 46.99 +57 26 25.3 z 121
1996-03-22 02:12:14 C 21 07 41.61 +57 27 03.4 z 121
1996-03-22 02:21:00 C 21 07 35.12 +57 27 49.3 z 121
1996-03-22 02:23:29 C 21 07 33.32 +57 28 02.7 z 121
1996-03-22 02:26:00 C 21 07 31.45 +57 28 15.0 z 121
1996-03-25 13:59:19 C 19 40 23.60 +63 59 24.3 c 566
1996-03-25 14:28:30 C 19 39 40.16 +64 01 23.5 c 566
1996-03-25 15:38:40 C 19 37 54.17 +64 06 03.2 c 566
1996-03-26 00:15:13 C 19 24 56.17 +64 34 20.0 z 557
1996-03-26 00:37:03 C 19 24 22.00 +64 35 37.6 z 557
1996-03-26 01:11:02 C 19 23 28.40 +64 37 37.4 z 557
1996-03-26 01:29:10 C 19 22 59.66 +64 38 41.0 z 557
1996-03-26 01:56:02 C 19 22 16.76 +64 40 14.1 z 557
1996-03-26 02:47:35 C 19 20 53.76 +64 43 09.8 z 557
1996-03-26 03:01:16 C 19 20 31.52 +64 43 55.3 z 557
1996-03-26 03:44:06 C 19 19 21.60 +64 46 16.6 z 557
1996-03-27 21:54:12 C 18 03 31.39 +65 53 25.8 z 072
1996-03-27 21:59:23 C 18 03 21.39 +65 53 27.2 z 072
1996-03-27 23:15:06 C 18 00 53.42 +65 53 37.8 z 072
1996-03-27 23:20:30 C 18 00 42.73 +65 53 38.4 z 072
1996-03-31 07:18:59 C 15 33 30.69 +60 23 44.2 z 670
1996-03-31 07:34:59 C 15 33 05.96 +60 21 46.4 z 670
1996-03-31 07:54:59 C 15 32 35.10 +60 19 20.1 z 670
1996-03-31 08:19:00 C 15 31 58.07 +60 16 22.6 z 670
1996-03-31 20:47:55 C 15 14 14.07 +58 34 37.4 z 557
1996-03-31 21:05:18 C 15 13 50.27 +58 32 15.9 z 557
1996-03-31 21:22:50 C 15 13 26.26 +58 29 53.0 z 557
1996-03-31 22:35:49 C 15 11 46.33 +58 19 52.2 z 557
1996-03-31 23:09:17 C 15 11 00.51 +58 15 13.1 z 557
1996-03-31 23:32:30 C 15 10 28.81 +58 11 58.5 z 557
1996-04-01 00:31:24 C 15 09 08.64 +58 03 40.1 z 557
1996-04-01 00:56:02 C 15 08 35.19 +58 00 08.6 z 557
1996-04-01 01:36:00 C 15 07 41.15 +57 54 23.4 z 557
1996-04-01 01:57:46 C 15 07 11.79 +57 51 13.6 z 557
1996-04-01 02:09:50 C 15 06 55.57 +57 49 28.1 z 557
1996-04-01 03:17:46 C 15 05 25.07 +57 39 28.7 z 557
1996-04-05 06:43:14 C 13 39 26.84 +41 28 50.6 z 670
1996-04-05 07:07:30 C 13 39 12.51 +41 24 57.7 z 670
1996-04-05 07:31:45 C 13 38 58.16 +41 21 04.4 z 670
1996-04-05 12:54:14 C 13 36 06.68 +40 28 50.1 z 360
1996-04-05 12:59:15 C 13 36 03.89 +40 28 02.9 z 360
1996-04-06 18:59:54 C 13 21 48.13 +35 47 22.2 z 557
1996-04-06 22:51:23 C 13 20 06.48 +35 13 13.6 z 557
1996-04-06 23:10:54 C 13 19 58.01 +35 10 22.7 046
1996-04-06 23:13:43 C 13 19 56.77 +35 09 57.6 046
1996-04-06 23:16:03 C 13 19 55.76 +35 09 37.0 046
1996-04-06 23:36:37 C 13 19 46.70 +35 06 31.0 z 557
1996-04-06 23:41:51 C 13 19 44.70 +35 05 54.9 z 610
1996-04-06 23:47:56 C 13 19 42.04 +35 05 00.8 z 610
1996-04-06 23:51:20 C 13 19 40.55 +35 04 30.7 z 610
Radar Observations (19)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1996-03-22 18:00:00 384093.223 2.3 Hz 8510 -14 -14
1996-03-22 20:10:00 87190665 15 us 8510 -14 -14
1996-03-22 22:50:00 86769151 2 us 8510 -14 -14
1996-03-22 22:50:00 371573.7 2 Hz 8510 -14 -14
1996-03-22.750000 38409322 200 Hz 8510 253 253
1996-03-22.840278 8719066500 15000 us 8510 253 253
1996-03-22.951389 8676915100 2000 us 8510 253 253
1996-03-24 17:50:00 324347 2 Hz 8510 -14 -14
1996-03-24 22:10:00 79673366 1 us 8510 -14 -14
1996-03-24 23:00:00 79562896 10 us 8510 -14 -14
1996-03-24.743056 32434700 200 Hz 8510 253 253
1996-03-24.923611 7967336600 1000 us 8510 253 253
1996-03-24.958333 7956289600 10000 us 8510 253 253
1996-03-29 19:30:00 96363 2 Hz 8510 -14 -14
1996-03-29.812500 9636300 200 Hz 8510 253 253
2012-09-13 11:31:00 -76858.4372 0.3 Hz 2380 -1 -1
2012-09-13 12:27:00 248520536.79 4 us 2380 -1 -1
2012-09-14 12:21:00 251520636.56 4 us 2380 -1 -1
2015-04-18 23:59:00 217913625.88 4 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)