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
2022-09-19 13:04:22 C 17 46 18.46 -52 17 03.5 q Q68
2022-09-19 13:06:30 C 17 46 18.56 -52 16 59.7 q Q68
2022-09-19 13:08:38 C 17 46 18.63 -52 16 57.2 q Q68
2022-09-19 17:46:05 C 17 45 56.182 -52 11 39.48 V M22
2022-09-19 17:50:38 C 17 45 55.733 -52 11 34.19 V M22
2022-09-19 17:58:02 C 17 45 55.013 -52 11 24.65 V M22
2022-09-19 18:15:04 C 17 45 53.354 -52 11 03.52 V M22
2022-12-21 12:36:59 C 14 54 11.459 -04 01 29.68 V V00
2022-12-21 12:44:09 C 14 54 11.970 -04 01 34.72 V V00
2022-12-21 12:51:18 C 14 54 12.481 -04 01 39.72 V V00
2022-12-21 12:58:27 C 14 54 12.989 -04 01 44.72 V V00
2022-12-26 12:56:25 C 15 03 38.959 -05 28 59.45 V 703
2022-12-26 13:03:11 C 15 03 39.604 -05 29 02.83 V 703
2022-12-26 13:09:57 C 15 03 40.086 -05 29 07.15 V 703
2022-12-26 13:16:43 C 15 03 40.687 -05 29 12.26 V 703
2023-02-02 12:43:20 C 16 33 14.965 -16 19 08.94 V G96
2023-02-02 12:54:03 C 16 33 16.031 -16 19 15.24 V G96
2023-02-02 13:04:28 C 16 33 17.086 -16 19 21.86 V G96
2023-02-02 13:18:58 C 16 33 18.500 -16 19 31.19 V G96
2023-04-15 08:07:59 C 18 51 46.572 -29 41 36.13 V W68
2023-04-15 08:12:34 C 18 51 46.805 -29 41 38.44 V W68
2023-04-15 08:16:33 C 18 51 46.901 -29 41 40.63 V W68
2023-04-26 01:25:10 C 18 59 22.390 -32 13 40.44 V M22
2023-04-26 01:27:49 C 18 59 22.409 -32 13 42.02 V M22
2023-04-26 01:32:06 C 18 59 22.474 -32 13 45.30 V M22
2023-04-26 01:42:22 C 18 59 22.613 -32 13 51.82 V M22
2023-05-03 06:59:51 C 19 00 35.098 -34 14 24.14 V W68
2023-05-03 07:02:38 C 19 00 35.078 -34 14 26.27 V W68
2023-05-03 07:07:12 C 19 00 35.050 -34 14 29.47 V W68
2023-05-03 07:14:32 C 19 00 34.956 -34 14 34.58 V W68
2023-05-11 09:45:58 C 18 57 07.080 -36 48 06.37 V W68
2023-05-11 09:51:27 C 18 57 06.862 -36 48 10.19 V W68
2023-05-11 09:56:09 C 18 57 06.641 -36 48 14.54 V W68
2023-05-11 10:13:25 C 18 57 06.017 -36 48 28.08 V W68
2023-05-20 00:55:31 C 18 46 25.750 -39 47 38.69 V M22
2023-05-20 00:58:12 C 18 46 25.526 -39 47 40.88 V M22
2023-05-20 01:23:06 C 18 46 23.585 -39 48 03.17 V M22
2023-06-12 05:41:09 C 17 36 47.203 -46 23 26.95 V W68
2023-06-12 05:43:17 C 17 36 46.860 -46 23 27.46 V W68
2023-06-12 05:47:19 C 17 36 46.147 -46 23 29.26 V W68
2023-06-12 05:48:40 C 17 36 45.902 -46 23 29.54 V W68
2023-06-12 06:06:00 C 17 36 42.931 -46 23 35.38 V W68
2023-06-22 21:50:10 C 16 55 03.598 -46 51 12.89 V M22
2023-06-22 21:56:21 C 16 55 02.633 -46 51 12.28 V M22
2023-06-22 22:43:57 C 16 54 55.042 -46 51 05.90 V M22
2023-06-22 22:52:25 C 16 54 53.693 -46 51 04.86 V M22
2023-07-03 22:48:56 C 16 20 32.465 -45 34 39.61 V M22
2023-07-03 22:55:09 C 16 20 31.800 -45 34 36.66 V M22
2023-07-03 23:02:35 C 16 20 30.994 -45 34 33.06 V M22
2023-07-03 23:53:36 C 16 20 25.466 -45 34 10.38 V M22
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)