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
2024-04-20 09:17:20 C 14 19 14.724 -11 43 42.89 V T05
2024-04-20 17:59:58 C 14 17 12.989 -11 52 07.14 V M22
2024-04-20 18:49:01 C 14 17 01.265 -11 53 00.67 V M22
2024-04-20 18:51:44 C 14 17 00.614 -11 53 03.52 V M22
2024-04-20 18:55:49 C 14 16 59.633 -11 53 08.05 V M22
2024-04-21 02:43:24 B 14 15 10.27 -12 01 32.1 W X16
2024-04-21 03:43:49 B 14 14 55.50 -12 02 34.2 W X16
2024-04-21 14:02:01 C 14 12 36.06 -12 12 43.3 u 323
2024-04-21 14:13:34 C 14 12 33.35 -12 12 54.3 u 323
2024-04-21 22:15:15 C 14 10 45.134 -12 21 52.13 Z C23
2024-04-21 22:18:48 C 14 10 44.321 -12 21 55.73 Z C23
2024-04-21 22:22:52 C 14 10 43.385 -12 21 59.69 Z C23
2024-04-22 22:15:47 C 14 05 34.411 -12 44 20.72 Z C23
2024-04-22 22:18:06 C 14 05 33.912 -12 44 22.60 Z C23
2024-04-22 22:20:24 C 14 05 33.396 -12 44 24.83 Z C23
2024-04-24 20:48:23 C 13 56 16.423 -13 23 35.63 Z C23
2024-04-24 20:50:08 C 13 56 16.082 -13 23 37.21 Z C23
2024-04-24 20:51:51 C 13 56 15.749 -13 23 38.62 Z C23
2024-04-25 21:08:02 C 13 51 46.14 -13 42 03.8 X G02
2024-04-25 21:13:21 C 13 51 45.15 -13 42 07.8 X G02
2024-04-25 21:18:23 C 13 51 44.19 -13 42 11.5 X G02
2024-04-27 20:41:56 C 13 43 41.00 -14 14 30.7 X G02
2024-04-27 20:48:12 C 13 43 39.93 -14 14 34.7 X G02
2024-04-27 20:54:28 C 13 43 38.88 -14 14 38.7 X G02
2024-04-28 02:31:31 B 13 42 45.19 -14 17 40.6 q X33
2024-04-28 02:33:33 B 13 42 44.82 -14 17 41.6 q X33
2024-04-28 02:35:35 B 13 42 44.50 -14 17 43.2 q X33
2024-04-28 09:42:51 C 13 41 35.077 -14 22 28.09 V 703
2024-04-28 09:46:06 C 13 41 34.541 -14 22 29.96 V 703
2024-04-28 09:49:21 C 13 41 33.997 -14 22 31.30 V 703
2024-04-28 09:52:36 C 13 41 33.472 -14 22 33.49 V 703
2024-04-28 21:33:48 C 13 39 48.487 -14 29 45.46 Z C23
2024-04-28 21:35:28 C 13 39 48.206 -14 29 46.36 Z C23
2024-04-28 21:37:05 C 13 39 47.966 -14 29 47.58 Z C23
2024-04-28 23:58:15 C 13 39 24.811 -14 30 18.22 V M22
2024-04-29 00:03:31 C 13 39 23.976 -14 30 21.17 V M22
2024-04-29 00:33:01 C 13 39 19.301 -14 30 37.62 V M22
2024-04-29 00:56:06 C 13 39 15.662 -14 30 50.62 V M22
2024-04-29 06:05:16 C 13 38 31.736 -14 34 36.80 V G96
2024-04-29 06:13:19 C 13 38 30.455 -14 34 41.48 V G96
2024-04-29 06:21:22 C 13 38 29.180 -14 34 46.13 V G96
2024-04-29 06:31:19 C 13 38 27.596 -14 34 52.00 V G96
2024-04-29 20:46:22 C 13 36 24.04 -14 43 00.9 X G02
2024-04-29 20:51:40 C 13 36 23.26 -14 43 03.9 X G02
2024-04-29 20:56:42 C 13 36 22.52 -14 43 06.7 X G02
2024-04-30 01:30:16 C 13 35 44.90 -14 45 29.2 V W46
2024-04-30 01:43:24 C 13 35 42.96 -14 45 36.7 V W46
2024-04-30 02:06:45 C 13 35 39.48 -14 45 49.9 V W46
2024-04-30 09:18:24 C 13 34 36.422 -14 49 40.08 V 703
2024-04-30 09:21:39 C 13 34 35.951 -14 49 41.74 V 703
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)