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
2006-05-30 03:45:19 C 10 37 21.25 +07 54 06.2 18.2 c 704
2006-05-30 04:02:40 C 10 37 23.78 +07 53 42.4 19.0 c 704
2006-05-30 04:10:56 C 10 37 24.96 +07 53 30.5 o 699
2006-05-30 04:20:14 C 10 37 26.30 +07 53 17.7 18.9 c 704
2006-05-30 04:26:42 C 10 37 27.23 +07 53 08.3 o 699
2006-05-30 04:37:40 C 10 37 28.80 +07 52 53.1 18.8 c 704
2006-05-30 04:42:27 C 10 37 29.44 +07 52 46.3 o 699
2006-05-30 04:55:09 C 10 37 31.26 +07 52 28.5 18.8 c 704
2006-05-31 03:50:36 C 10 40 50.05 +07 20 49.2 r 703
2006-05-31 04:04:02 C 10 40 51.92 +07 20 31.5 r 703
2006-05-31 04:17:30 C 10 40 53.86 +07 20 13.0 r 703
2006-05-31 04:31:02 C 10 40 55.77 +07 19 53.7 r 703
2007-06-11 03:45:37 C 09 17 00.27 +19 07 08.8 r G96
2007-06-11 03:54:30 C 09 17 01.96 +19 06 58.1 r G96
2007-06-11 04:03:12 C 09 17 03.62 +19 06 48.0 r G96
2007-06-11 04:11:56 C 09 17 05.28 +19 06 37.7 r G96
2012-05-22 09:56:57 C 22 34 15.37 -22 52 04.6 o 807
2012-05-22 10:06:19 C 22 34 16.32 -22 52 02.8 o 807
2012-05-22 10:14:57 C 22 34 17.19 -22 52 01.0 o 807
2012-05-24 10:09:39 C 22 39 14.15 -22 42 21.2 o 807
2012-05-24 10:17:04 C 22 39 14.90 -22 42 20.0 o 807
2012-05-24 10:24:29 C 22 39 15.65 -22 42 18.6 o 807
2012-05-24 10:31:54 C 22 39 16.40 -22 42 17.0 o 807
2013-05-09 15:34:01 C 20 27 45.18 -32 15 20.2 r E12
2013-05-09 15:47:11 C 20 27 45.90 -32 15 25.8 r E12
2013-05-09 16:13:22 C 20 27 47.23 -32 15 37.0 r E12
2013-06-08 06:39:37 C 20 46 56.460 -39 57 04.80 o 844
2013-06-08 06:44:58 C 20 46 56.367 -39 57 10.51 o 844
2013-06-08 06:50:18 C 20 46 56.257 -39 57 15.05 o 844
2013-06-08 06:55:39 C 20 46 56.238 -39 57 19.62 o 844
2013-06-08 07:00:59 C 20 46 56.098 -39 57 24.66 o 844
2013-06-21 13:33:27 C 20 34 50.70 -45 18 43.8 q E12
2013-06-21 13:51:59 C 20 34 49.33 -45 19 04.2 q E12
2013-06-21 14:10:36 C 20 34 47.97 -45 19 24.8 q E12
2013-06-21 14:29:08 C 20 34 46.60 -45 19 45.2 q E12
2013-07-14 07:24:51 C 19 23 11.89 -53 35 00.2 r Y00
2013-07-14 07:28:46 C 19 23 11.04 -53 35 02.0 r Y00
2013-07-14 07:32:51 C 19 23 10.24 -53 35 04.1 r Y00
2013-07-30 02:44:07 C 18 15 18.47 -54 01 24.4 r Y00
2013-07-30 02:49:32 C 18 15 17.41 -54 01 24.0 r Y00
2013-07-30 02:56:28 C 18 15 16.32 -54 01 21.4 r Y00
2013-07-31 01:55:27 C 18 11 48.01 -53 53 31.4 r Y00
2013-07-31 02:00:53 C 18 11 47.07 -53 53 28.2 r Y00
2013-07-31 02:07:52 C 18 11 46.03 -53 53 25.5 r Y00
2013-08-05 00:24:33 C 17 55 51.96 -53 00 55.9 r Y00
2013-08-05 00:29:34 C 17 55 51.27 -53 00 52.8 r Y00
2013-08-05 00:34:37 C 17 55 50.53 -53 00 49.7 r Y00
2013-08-08 03:44:44 C 17 47 33.07 -52 19 10.2 r Y00
2013-08-08 03:50:41 C 17 47 32.36 -52 19 06.1 r Y00
2013-08-08 03:58:51 C 17 47 31.54 -52 19 00.3 r Y00
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)