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
2015-04-13 00:53:30 C 08 01 15.55 +38 50 24.0 q I15
2015-04-13 00:56:03 C 08 01 16.75 +38 50 15.2 q I15
2015-04-13 20:27:43 C 08 10 27.08 +37 44 41.9 r 006
2015-04-13 20:35:50 C 08 10 30.73 +37 44 14.1 r 006
2015-04-13 20:44:46 C 08 10 34.78 +37 43 43.3 r 006
2015-04-13 20:51:01 C 08 10 37.54 +37 43 22.1 r 006
2015-04-13 20:55:37 C 08 10 39.62 +37 43 06.1 r 006
2015-04-14 19:38:25 C 08 20 49.43 +36 25 08.5 r 006
2015-04-14 19:40:36 C 08 20 50.34 +36 25 00.7 r 006
2015-04-14 19:42:11 C 08 20 51.00 +36 24 55.3 r 006
2015-04-14 19:44:11 C 08 20 51.86 +36 24 48.1 r 006
2015-04-14 19:46:12 C 08 20 52.71 +36 24 41.1 r 006
2015-04-14 19:48:36 C 08 20 53.76 +36 24 32.2 r 006
2015-04-14 19:50:36 C 08 20 54.58 +36 24 25.8 r 006
2015-04-15 03:13:28 C 08 24 05.47 +35 58 52.9 q 703
2015-04-15 03:19:19 C 08 24 07.87 +35 58 32.3 q 703
2015-04-15 03:25:09 C 08 24 10.35 +35 58 11.3 q 703
2015-04-15 03:30:59 C 08 24 12.76 +35 57 51.3 q 703
2015-04-15 19:37:47 C 08 30 57.40 +35 01 14.1 q G34
2015-04-15 19:46:17 C 08 31 00.76 +35 00 44.5 q G34
2015-04-15 19:50:32 C 08 31 02.44 +35 00 27.6 q G34
2015-04-15 19:54:46 C 08 31 04.23 +35 00 14.2 q G34
2015-04-17 01:20:21 C 08 42 43.66 +33 16 40.5 q H21
2015-04-17 01:23:26 C 08 42 44.80 +33 16 29.5 q H21
2015-04-17 01:26:33 C 08 42 45.96 +33 16 18.4 q H21
2015-04-17 01:29:39 C 08 42 47.11 +33 16 07.6 q H21
2015-04-17 01:32:45 C 08 42 48.25 +33 15 56.5 q H21
2015-04-17 01:35:52 C 08 42 49.40 +33 15 45.5 q H21
2015-04-17 01:38:33 C 08 42 50.41 +33 15 35.9 q H21
2015-04-17 04:17:12 C 08 43 49.79 +33 06 19.5 o G48
2015-04-17 04:18:53 C 08 43 50.40 +33 06 13.4 o G48
2015-04-17 04:19:30 C 08 43 50.64 +33 06 11.5 o G48
2015-04-17 04:20:03 C 08 43 50.81 +33 06 09.3 o G48
2015-04-17 11:01:44 S 08 46 23.947 +32 42 29.99 L C51
2015-04-17 14:10:47 S 08 47 34.147 +32 31 22.76 L C51
2015-04-17 17:19:50 S 08 48 43.798 +32 20 15.83 L C51
2015-04-17 18:54:16 S 08 49 18.39 +32 14 43.0 L C51
2015-04-17 20:28:42 S 08 49 52.84 +32 09 10.2 L C51
2015-04-17 20:28:53 S 08 49 52.92 +32 09 09.0 L C51
2015-04-17 22:03:19 S 08 50 27.25 +32 03 36.5 L C51
2015-04-17 23:37:45 S 08 51 01.44 +31 58 04.1 L C51
2015-04-18 01:12:22 S 08 51 35.58 +31 52 30.3 L C51
2015-04-18 04:21:25 S 08 52 43.373 +31 41 24.94 L C51
2015-04-18 07:30:29 S 08 53 50.654 +31 30 19.73 L C51
2015-04-18 10:39:21 S 08 54 57.362 +31 19 16.64 L C51
2015-04-18 10:39:32 S 08 54 57.439 +31 19 15.38 L C51
2015-04-18 21:36:30 C 08 58 43.32 +30 40 44.8 r 006
2015-04-18 21:38:30 C 08 58 43.97 +30 40 37.8 r 006
2015-04-18 21:43:17 C 08 58 45.58 +30 40 20.7 r 006
2015-04-18 21:46:58 C 08 58 46.81 +30 40 07.8 r 006
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)