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
2015-04-29 01:50:29 C 10 02 48.21 +17 52 27.5 u H21
2015-05-01 01:50:00 C 10 12 01.06 +15 46 55.4 u H21
2015-05-01 01:52:43 C 10 12 01.55 +15 46 48.7 u H21
2015-05-01 01:55:26 C 10 12 02.04 +15 46 41.6 u H21
2015-05-01 01:58:10 C 10 12 02.51 +15 46 34.7 u H21
2015-05-01 02:03:36 C 10 12 03.46 +15 46 21.0 u H21
2015-05-01 02:06:19 C 10 12 03.94 +15 46 14.1 u H21
2015-05-01 02:11:46 C 10 12 04.91 +15 46 00.3 u H21
2015-05-01 02:14:41 C 10 12 05.41 +15 45 52.9 u H21
2015-05-02 01:34:41 C 10 16 17.77 +14 47 57.2 u H21
2015-05-02 01:37:08 C 10 16 18.18 +14 47 51.4 u H21
2015-05-02 01:39:35 C 10 16 18.59 +14 47 45.2 u H21
2015-05-02 01:41:56 C 10 16 18.99 +14 47 39.4 u H21
2015-05-02 01:44:17 C 10 16 19.40 +14 47 33.8 u H21
2015-05-02 01:46:39 C 10 16 19.78 +14 47 27.9 u H21
2015-05-02 01:51:27 C 10 16 20.60 +14 47 16.3 u H21
2015-05-02 01:56:38 C 10 16 21.49 +14 47 03.7 u H21
2015-05-02 17:48:02 C 10 19 06.65 +14 08 41.0 r 168
2015-05-02 17:55:03 C 10 19 07.86 +14 08 24.0 r 168
2015-05-02 18:20:01 C 10 19 12.01 +14 07 24.3 r 168
2015-05-02 18:27:04 C 10 19 13.19 +14 07 07.4 r 168
2015-05-02 18:33:13 C 10 19 14.23 +14 06 52.6 r 168
2015-05-02 18:37:08 C 10 19 14.88 +14 06 43.3 r 168
2015-05-04 01:57:27 C 10 24 29.99 +12 53 55.8 u H21
2015-05-04 02:00:24 C 10 24 30.46 +12 53 49.2 u H21
2015-05-04 02:03:20 C 10 24 30.91 +12 53 42.5 u H21
2015-05-04 02:06:16 C 10 24 31.38 +12 53 35.8 u H21
2015-05-04 02:09:13 C 10 24 31.84 +12 53 29.0 u H21
2015-05-04 02:12:09 C 10 24 32.32 +12 53 22.4 u H21
2015-05-04 02:15:06 C 10 24 32.77 +12 53 15.6 u H21
2015-05-04 02:17:33 C 10 24 33.17 +12 53 09.9 u H21
2015-05-04 04:09:39 C 10 24 50.72 +12 48 54.7 q H21
2015-05-04 04:12:44 C 10 24 51.20 +12 48 47.3 q H21
2015-05-04 04:15:50 C 10 24 51.69 +12 48 40.3 q H21
2015-05-04 04:18:56 C 10 24 52.18 +12 48 33.1 q H21
2015-05-04 04:22:02 C 10 24 52.68 +12 48 26.1 q H21
2015-05-04 04:25:07 C 10 24 53.17 +12 48 19.1 q H21
2015-05-04 04:28:00 C 10 24 53.59 +12 48 12.6 q H21
2015-05-05 13:15:45 C 10 30 05.62 +11 35 41.3 o 300
2015-05-05 13:17:06 C 10 30 05.84 +11 35 38.8 o 300
2015-05-05 13:18:29 C 10 30 06.08 +11 35 35.2 o 300
2015-05-05 13:19:51 C 10 30 06.23 +11 35 32.3 o 300
2015-05-05 13:21:13 C 10 30 06.47 +11 35 29.9 o 300
2015-05-05 13:22:37 C 10 30 06.66 +11 35 27.1 o 300
2015-05-07 01:05:56 C 10 35 30.45 +10 20 14.5 q I15
2015-05-07 01:08:07 C 10 35 30.76 +10 20 10.2 q I15
2015-05-07 01:10:19 C 10 35 31.08 +10 20 05.5 q I15
2015-05-07 01:48:19 C 10 35 36.83 +10 18 49.0 u H21
2015-05-07 01:51:15 C 10 35 37.24 +10 18 42.7 u H21
2015-05-07 01:54:11 C 10 35 37.65 +10 18 36.7 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)