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
2024-05-05 22:05:59 C 13 19 13.589 -15 48 37.58 V M22
2024-05-07 03:13:14 C 13 16 34.464 -15 59 17.63 V W68
2024-05-07 03:17:49 C 13 16 34.032 -15 59 19.18 V W68
2024-05-07 03:26:26 C 13 16 33.185 -15 59 22.16 V W68
2024-05-07 03:42:24 C 13 16 31.663 -15 59 27.71 V W68
2024-05-07 20:20:47 C 13 15 07.889 -16 05 52.40 Z C23
2024-05-07 20:25:15 C 13 15 07.630 -16 05 55.10 Z C23
2024-05-07 20:30:27 C 13 15 07.018 -16 05 56.90 Z C23
2024-05-08 07:17:10 C 13 14 13.103 -16 09 27.76 V 703
2024-05-08 07:20:25 C 13 14 12.818 -16 09 28.62 V 703
2024-05-08 07:23:41 C 13 14 12.530 -16 09 29.88 V 703
2024-05-08 07:26:56 C 13 14 12.253 -16 09 30.85 V 703
2024-05-08 21:21:12 C 13 13 07.831 -16 13 32.09 V M22
2024-05-08 21:25:47 C 13 13 07.450 -16 13 33.49 V M22
2024-05-08 21:33:40 C 13 13 06.782 -16 13 36.05 V M22
2024-05-08 21:47:57 C 13 13 05.582 -16 13 40.48 V M22
2024-05-08 22:42:18 C 13 13 01.625 -16 14 36.64 Z C23
2024-05-08 22:56:51 C 13 13 00.422 -16 14 41.75 Z C23
2024-05-08 23:19:33 C 13 12 58.570 -16 14 49.70 Z C23
2024-05-09 06:22:04 C 13 12 27.112 -16 16 58.94 V G96
2024-05-09 06:29:28 C 13 12 26.510 -16 17 01.14 V G96
2024-05-09 06:36:51 C 13 12 25.902 -16 17 03.41 V G96
2024-05-09 06:44:15 C 13 12 25.297 -16 17 05.78 V G96
2024-05-09 07:51:53 C 13 12 21.277 -16 17 22.71 X F51
2024-05-09 08:06:46 C 13 12 20.046 -16 17 27.47 X F51
2024-05-09 08:21:38 C 13 12 18.820 -16 17 32.25 X F51
2024-05-09 08:36:29 C 13 12 17.593 -16 17 36.94 X F51
2024-05-09 20:31:26 C 13 11 26.39 -16 21 30.7 X G02
2024-05-09 20:37:01 C 13 11 25.97 -16 21 32.7 X G02
2024-05-09 20:42:36 C 13 11 25.51 -16 21 34.4 X G02
2024-05-09 20:50:07 C 13 11 25.229 -16 21 37.01 Z C23
2024-05-09 21:29:28 C 13 11 21.790 -16 21 11.02 V M22
2024-05-09 21:36:30 C 13 11 21.242 -16 21 13.14 V M22
2024-05-09 21:44:25 C 13 11 20.623 -16 21 15.52 V M22
2024-05-09 21:46:54 C 13 11 20.918 -16 21 54.83 Z C23
2024-05-09 22:01:05 C 13 11 19.325 -16 21 20.59 V M22
2024-05-12 03:00:46 C 13 07 56.928 -16 37 03.40 V W68
2024-05-12 03:06:03 C 13 07 56.578 -16 37 04.91 V W68
2024-05-12 03:14:04 C 13 07 56.057 -16 37 07.14 V W68
2024-05-12 03:36:13 C 13 07 54.610 -16 37 13.26 V W68
2024-05-12 19:52:52 C 13 07 00.79 -16 42 20.9 X G02
2024-05-12 19:58:28 C 13 07 00.46 -16 42 22.4 X G02
2024-05-12 20:04:03 C 13 07 00.12 -16 42 24.2 X G02
2024-05-12 21:19:18 C 13 06 55.483 -16 42 09.97 V M22
2024-05-12 21:23:53 C 13 06 55.200 -16 42 11.20 V M22
2024-05-12 21:31:45 C 13 06 54.715 -16 42 13.36 V M22
2024-05-12 21:37:31 C 13 06 55.10 -16 42 47.6 X Y75
2024-05-12 21:48:05 C 13 06 53.729 -16 42 17.60 V M22
2024-05-12 22:31:11 C 13 06 51.87 -16 43 02.0 X Y75
2024-05-12 23:26:17 C 13 06 48.56 -16 43 16.8 X Y75
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)