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
2020-08-12 11:40:56 C 06 46 54.69 +24 03 22.0 U I41
2020-08-12 11:48:02 C 06 46 56.48 +24 03 22.9 U I41
2020-08-12 11:55:07 C 06 46 58.26 +24 03 23.8 U I41
2020-08-12 12:02:14 C 06 47 00.04 +24 03 24.7 U I41
2021-06-21 14:12:48 C 00 35 41.58 -11 49 42.6 V T05
2021-06-21 14:20:43 C 00 35 42.63 -11 49 37.4 V T05
2021-06-21 14:38:43 C 00 35 45.00 -11 49 26.0 V T05
2021-06-21 14:48:03 C 00 35 46.23 -11 49 20.6 V T05
2021-07-09 14:07:20 C 01 38 29.70 -06 37 21.9 V T08
2021-07-09 14:29:21 C 01 38 33.14 -06 37 04.2 V T08
2021-07-09 14:36:43 C 01 38 34.27 -06 36 57.9 V T08
2021-07-09 14:50:15 C 01 38 36.42 -06 36 46.8 V T08
2021-07-13 13:35:01 C 01 54 02.94 -05 15 32.6 V T08
2021-07-13 13:40:20 C 01 54 03.78 -05 15 27.9 V T08
2021-07-13 13:50:17 C 01 54 05.44 -05 15 19.2 V T08
2021-07-13 14:18:15 C 01 54 10.03 -05 14 54.7 V T08
2021-07-17 13:45:50 C 02 10 29.75 -03 47 29.2 V T08
2021-07-17 13:51:49 C 02 10 30.79 -03 47 23.5 V T08
2021-07-17 14:10:28 C 02 10 34.01 -03 47 05.7 V T08
2021-07-17 14:28:45 C 02 10 37.14 -03 46 48.8 V T08
2021-07-19 13:47:10 C 02 19 01.68 -03 01 17.0 V T05
2021-07-19 13:52:27 C 02 19 02.68 -03 01 12.4 V T05
2021-07-19 14:00:21 C 02 19 04.08 -03 01 04.5 V T05
2021-07-19 14:29:31 C 02 19 09.23 -03 00 36.0 V T05
2021-08-12 12:35:03 C 04 21 30.05 +07 57 31.8 V T05
2021-08-12 13:10:41 C 04 21 38.80 +07 58 16.8 V T05
2021-08-12 13:19:28 C 04 21 40.99 +07 58 27.9 V T05
2021-08-12 13:25:26 C 04 21 42.44 +07 58 34.6 V T05
2021-08-18 14:39:50 C 04 58 59.94 +10 56 56.5 V T08
2021-08-18 14:48:31 C 04 59 02.18 +10 57 06.7 V T08
2021-08-18 14:58:17 C 04 59 04.72 +10 57 18.9 V T08
2021-08-18 15:07:08 C 04 59 07.02 +10 57 30.0 V T08
2021-08-19 14:36:08 C 05 05 21.65 +11 25 24.7 V T08
2021-08-19 14:52:30 C 05 05 25.97 +11 25 44.3 V T08
2021-08-19 14:56:32 C 05 05 27.02 +11 25 49.0 V T08
2021-08-19 15:06:02 C 05 05 29.51 +11 25 59.8 V T08
2021-08-21 14:30:46 C 05 18 15.15 +12 21 06.6 V T05
2021-08-21 14:38:41 C 05 18 17.24 +12 21 15.5 V T05
2021-08-21 15:02:16 C 05 18 23.57 +12 21 42.8 V T05
2021-08-21 15:13:00 C 05 18 26.49 +12 21 55.2 V T05
2021-09-08 11:06:36 C 07 18 05.35 +18 21 08.1 V 703
2021-09-08 11:13:44 C 07 18 07.28 +18 21 13.0 V 703
2021-09-08 11:20:50 C 07 18 09.22 +18 21 15.8 V 703
2021-09-15 12:02:06 C 08 04 04.55 +19 09 34.2 U I41
2021-09-15 12:05:35 C 08 04 05.45 +19 09 34.6 U I41
2021-09-15 12:09:04 C 08 04 06.37 +19 09 35.0 U I41
2021-09-15 12:12:34 C 08 04 07.29 +19 09 35.5 U I41
2021-09-15 12:16:03 C 08 04 08.21 +19 09 35.9 U I41
2021-09-16 11:34:03 C 08 10 17.92 +19 11 46.7 V 703
2021-09-16 11:44:36 C 08 10 20.73 +19 11 48.4 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)