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
2005-05-28 14:06:22 C 14 06 20.00 -28 34 58.1 r E12
2005-05-28 14:17:58 C 14 06 19.10 -28 34 54.9 r E12
2005-06-04 12:08:29 C 13 56 44.61 -27 58 52.6 r E12
2005-06-04 12:20:43 C 13 56 44.02 -27 58 50.2 r E12
2005-06-04 12:34:25 C 13 56 43.37 -27 58 47.0 r E12
2005-07-03 11:11:47 C 13 58 42.09 -27 04 16.7 r E12
2005-07-03 11:21:14 C 13 58 42.34 -27 04 16.5 r E12
2005-07-03 11:30:42 C 13 58 42.67 -27 04 16.8 r E12
2005-07-03 11:40:10 C 13 58 42.99 -27 04 17.1 r E12
2005-08-06 10:26:22 C 14 45 44.38 -28 44 56.0 r E12
2005-08-06 10:38:10 C 14 45 45.14 -28 44 57.8 r E12
2005-08-06 10:49:44 C 14 45 46.00 -28 44 59.2 r E12
2005-08-06 11:01:13 C 14 45 46.87 -28 45 01.9 r E12
2006-03-23 19:20:17 C 03 22 37.71 +31 19 02.1 r 113
2006-03-23 19:22:24 C 03 22 38.26 +31 19 04.2 r 113
2006-04-08 19:07:39 C 05 24 03.09 +35 21 46.0 18.5 r 130
2006-04-08 19:13:24 C 05 24 05.07 +35 21 46.0 18.7 r 130
2006-04-08 19:19:35 C 05 24 07.27 +35 21 44.9 18.5 r 130
2006-04-18 03:08:47 C 06 42 17.24 +33 37 36.2 18.0 c 704
2006-04-18 03:27:46 C 06 42 23.64 +33 37 18.4 18.4 c 704
2006-04-18 03:44:46 C 06 42 29.53 +33 37 02.8 18.5 c 704
2006-04-18 04:02:07 C 06 42 35.30 +33 36 46.6 18.2 c 704
2006-04-29 03:34:11 C 08 05 39.97 +27 58 13.4 18.5 c 704
2006-04-29 03:49:08 C 08 05 44.08 +27 57 50.4 18.3 c 704
2006-04-29 04:04:07 C 08 05 48.35 +27 57 26.9 18.7 c 704
2006-04-29 04:19:19 C 08 05 52.66 +27 57 01.2 18.4 c 704
2006-04-30 03:27:10 C 08 12 22.87 +27 20 09.5 18.3 c 704
2006-04-30 03:41:56 C 08 12 26.99 +27 19 46.2 19.2 c 704
2006-04-30 03:56:48 C 08 12 31.00 +27 19 22.1 18.7 c 704
2006-04-30 04:11:42 C 08 12 35.10 +27 18 57.3 18.7 c 704
2006-04-30 04:27:25 C 08 12 39.44 +27 18 31.6 18.4 c 704
2006-05-25 03:40:19 C 10 19 05.51 +10 47 20.2 18.2 c 704
2006-05-25 03:50:48 C 10 19 07.13 +10 47 04.4 18.0 c 704
2006-05-25 03:56:20 C 10 19 08.02 +10 46 55.3 18.9 c 704
2006-05-25 04:07:43 C 10 19 09.79 +10 46 37.6 18.7 c 704
2006-05-25 04:12:25 C 10 19 10.54 +10 46 30.6 18.9 c 704
2006-05-25 04:23:05 C 10 19 12.21 +10 46 15.9 18.4 c 704
2006-05-25 04:28:32 C 10 19 13.06 +10 46 07.4 18.9 c 704
2006-05-25 04:38:28 C 10 19 14.62 +10 45 52.2 18.5 c 704
2006-05-25 04:40:35 C 10 19 14.91 +10 45 49.5 r G96
2006-05-25 04:44:38 C 10 19 15.61 +10 45 43.7 18.6 c 704
2006-05-25 04:47:09 C 10 19 15.96 +10 45 39.6 r G96
2006-05-25 04:53:37 C 10 19 16.96 +10 45 29.8 r G96
2006-05-25 04:54:16 C 10 19 17.07 +10 45 29.9 18.5 c 704
2006-05-25 05:00:19 C 10 19 18.01 +10 45 19.7 r G96
2006-05-27 03:54:31 C 10 26 37.29 +09 36 16.5 18.6 c 704
2006-05-27 04:13:06 C 10 26 40.02 +09 35 50.4 18.9 c 704
2006-05-27 04:31:48 C 10 26 42.85 +09 35 22.5 19.1 c 704
2006-05-27 04:47:59 C 10 26 45.32 +09 34 58.3 18.7 c 704
2006-05-27 05:05:05 C 10 26 47.87 +09 34 33.6 18.9 c 704
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)