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
2022-08-09 06:25:34 C 21 01 42.487 -59 18 39.35 V W68
2022-08-11 12:06:38 C 20 49 09.03 -60 04 47.1 q E89
2022-08-11 12:13:33 C 20 49 07.30 -60 04 52.8 q E89
2022-08-11 12:20:45 C 20 49 05.45 -60 04 58.5 q E89
2022-08-13 03:11:35 C 20 39 30.809 -60 33 00.68 V W68
2022-08-13 03:13:33 C 20 39 30.293 -60 33 02.09 V W68
2022-08-13 03:18:54 C 20 39 28.870 -60 33 05.65 V W68
2022-08-13 03:26:05 C 20 39 26.954 -60 33 10.40 V W68
2022-08-14 00:22:27 C 20 34 09.35 -60 46 08.7 q 834
2022-08-14 01:13:23 C 20 33 55.62 -60 46 41.4 q 834
2022-08-20 01:14:01 C 19 55 46.99 -61 35 36.0 q 834
2022-08-20 01:47:07 C 19 55 37.63 -61 35 39.0 q 834
2022-08-23 10:16:29 C 19 34 24.06 -61 31 24.1 q E89
2022-08-23 10:25:56 C 19 34 21.51 -61 31 22.0 q E89
2022-08-23 10:34:06 C 19 34 19.26 -61 31 20.4 q E89
2022-08-23 10:42:24 C 19 34 16.99 -61 31 19.0 q E89
2022-08-25 03:52:19 C 19 23 48.766 -61 20 53.34 V W68
2022-08-25 03:57:53 C 19 23 47.314 -61 20 51.58 V W68
2022-08-25 04:06:25 C 19 23 45.079 -61 20 48.48 V W68
2022-08-25 04:22:55 C 19 23 40.752 -61 20 42.14 V W68
2022-08-29 01:36:09 C 19 01 36.888 -60 38 35.20 V W68
2022-08-29 01:40:44 C 19 01 35.796 -60 38 32.57 V W68
2022-08-29 01:49:14 C 19 01 33.770 -60 38 27.49 V W68
2022-08-29 02:04:19 C 19 01 30.161 -60 38 18.46 V W68
2022-09-03 23:39:09 S 18 33 11.935 -58 54 35.86 L C51
2022-09-04 02:46:55 S 18 32 38.92 -58 51 52.9 L C51
2022-09-04 05:54:52 S 18 32 06.04 -58 49 09.8 L C51
2022-09-04 07:28:45 S 18 31 49.70 -58 47 47.6 L C51
2022-09-04 09:02:38 S 18 31 33.41 -58 46 25.4 L C51
2022-09-04 10:36:31 S 18 31 17.14 -58 45 02.8 L C51
2022-09-04 12:09:40 S 18 31 01.06 -58 43 39.1 L C51
2022-09-04 12:09:51 S 18 31 01.07 -58 43 39.4 L C51
2022-09-04 13:44:17 S 18 30 44.80 -58 42 17.0 L C51
2022-09-04 13:44:28 S 18 30 44.77 -58 42 17.2 L C51
2022-09-04 16:52:14 S 18 30 12.60 -58 39 30.5 L C51
2022-09-05 22:35:50 S 18 25 16.50 -58 12 24.8 L C51
2022-09-05 22:36:02 S 18 25 16.48 -58 12 25.2 L C51
2022-09-06 01:43:47 S 18 24 46.28 -58 09 29.7 L C51
2022-09-06 03:17:40 S 18 24 31.26 -58 08 01.7 L C51
2022-09-06 04:51:34 S 18 24 16.29 -58 06 33.4 L C51
2022-09-06 06:25:26 S 18 24 01.38 -58 05 05.2 L C51
2022-09-06 09:33:23 S 18 23 31.58 -58 02 08.1 L C51
2022-09-06 12:41:10 S 18 23 01.99 -57 59 10.0 L C51
2022-09-06 15:48:55 S 18 22 32.68 -57 56 11.4 L C51
2022-09-07 20:23:03 C 18 18 11.410 -57 28 36.19 V M22
2022-09-07 20:27:44 C 18 18 10.694 -57 28 31.15 V M22
2022-09-07 20:37:52 C 18 18 09.098 -57 28 20.64 V M22
2022-09-07 20:53:09 C 18 18 06.674 -57 28 04.55 V M22
2022-09-19 12:45:12 C 17 46 20.58 -52 17 29.0 q Q68
2022-09-19 12:47:19 C 17 46 20.62 -52 17 24.7 q Q68
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)