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
2015-04-18 21:51:08 C 08 58 48.20 +30 39 52.8 r 006
2015-04-18 21:55:34 C 08 58 49.68 +30 39 37.2 r 006
2015-04-18 21:58:41 C 08 58 50.72 +30 39 26.2 r 006
2015-04-18 22:02:48 C 08 58 52.09 +30 39 11.7 r 006
2015-04-20 20:32:29 C 09 13 56.03 +27 58 39.3 r 006
2015-04-20 20:37:03 C 09 13 57.37 +27 58 23.8 r 006
2015-04-20 20:43:02 C 09 13 59.11 +27 58 03.4 r 006
2015-04-20 20:47:40 C 09 14 00.53 +27 57 47.4 r 006
2015-04-21 04:20:02 C 09 16 17.63 +27 32 18.5 q 703
2015-04-21 04:30:08 C 09 16 20.57 +27 31 43.8 q 703
2015-04-21 04:40:16 C 09 16 23.52 +27 31 09.3 q 703
2015-04-21 04:50:22 C 09 16 26.46 +27 30 34.6 q 703
2015-04-22 01:37:53 C 09 22 32.99 +26 20 52.1 u H21
2015-04-22 01:38:51 C 09 22 33.25 +26 20 48.8 u H21
2015-04-22 01:39:50 C 09 22 33.51 +26 20 45.6 u H21
2015-04-22 01:41:24 C 09 22 33.96 +26 20 40.4 u H21
2015-04-22 01:42:23 C 09 22 34.23 +26 20 37.1 u H21
2015-04-22 01:43:22 C 09 22 34.51 +26 20 33.9 u H21
2015-04-23 20:56:28 C 09 34 19.79 +23 59 58.7 q G34
2015-04-23 21:04:57 C 09 34 21.93 +23 59 31.2 q G34
2015-04-23 21:09:12 C 09 34 22.95 +23 59 18.1 q G34
2015-04-27 01:28:20 C 09 52 38.16 +20 07 48.8 u H21
2015-04-27 01:30:41 C 09 52 38.68 +20 07 41.0 u H21
2015-04-27 01:32:50 C 09 52 39.15 +20 07 35.2 u H21
2015-04-27 01:35:35 C 09 52 39.74 +20 07 27.2 u H21
2015-04-27 01:39:18 C 09 52 40.53 +20 07 16.4 u H21
2015-04-27 01:42:03 C 09 52 41.13 +20 07 08.7 u H21
2015-04-27 01:43:48 C 09 52 41.48 +20 07 03.4 u H21
2015-04-27 20:39:00 C 09 56 46.62 +19 13 01.8 r 006
2015-04-27 20:43:22 C 09 56 47.42 +19 12 49.2 r 006
2015-04-27 20:47:47 C 09 56 48.38 +19 12 36.6 r 006
2015-04-27 20:52:41 C 09 56 49.46 +19 12 22.9 r 006
2015-04-27 20:57:20 C 09 56 50.35 +19 12 09.5 r 006
2015-04-27 21:00:19 C 09 56 50.97 +19 12 01.3 r 006
2015-04-28 01:26:32 C 09 57 47.79 +18 59 36.5 u H21
2015-04-28 01:31:59 C 09 57 48.90 +18 59 21.4 u H21
2015-04-28 01:34:43 C 09 57 49.44 +18 59 13.8 u H21
2015-04-28 01:37:22 C 09 57 50.00 +18 59 06.2 u H21
2015-04-28 01:40:01 C 09 57 50.53 +18 58 59.0 u H21
2015-04-28 01:42:40 C 09 57 51.08 +18 58 51.6 u H21
2015-04-28 01:45:19 C 09 57 51.60 +18 58 44.1 u H21
2015-04-28 01:49:17 C 09 57 52.41 +18 58 33.1 u H21
2015-04-28 20:58:22 C 10 01 48.72 +18 05 36.5 q 203
2015-04-28 21:23:17 C 10 01 53.63 +18 04 28.2 q 203
2015-04-29 01:33:14 C 10 02 44.91 +17 53 14.2 u H21
2015-04-29 01:36:10 C 10 02 45.47 +17 53 06.3 u H21
2015-04-29 01:39:07 C 10 02 46.03 +17 52 58.4 u H21
2015-04-29 01:42:03 C 10 02 46.60 +17 52 50.3 u H21
2015-04-29 01:45:00 C 10 02 47.16 +17 52 42.3 u H21
2015-04-29 01:47:27 C 10 02 47.63 +17 52 35.8 u H21
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)