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
2013-08-22 01:24:42 C 17 27 23.93 -48 41 31.7 r Y00
2013-08-22 01:38:03 C 17 27 23.45 -48 41 22.8 r Y00
2013-08-22 01:46:50 C 17 27 23.25 -48 41 15.9 r Y00
2013-08-23 01:48:00 C 17 26 50.60 -48 25 03.0 r Y00
2013-08-23 01:57:51 C 17 26 50.59 -48 24 57.2 r Y00
2013-08-23 02:10:33 C 17 26 50.36 -48 24 46.6 r Y00
2013-08-24 02:10:58 C 17 26 24.20 -48 08 36.2 r Y00
2013-08-24 02:20:48 C 17 26 24.11 -48 08 28.3 r Y00
2013-08-24 02:31:29 C 17 26 23.84 -48 08 21.8 r Y00
2013-08-25 01:02:59 C 17 26 05.43 -47 53 17.6 r Y00
2013-08-25 01:16:01 C 17 26 04.99 -47 53 08.2 r Y00
2013-08-25 01:26:30 C 17 26 04.83 -47 53 01.4 r Y00
2013-08-31 02:05:09 C 17 25 59.95 -46 17 25.1 r Y00
2013-08-31 02:17:55 C 17 26 00.21 -46 17 15.7 r Y00
2013-08-31 02:31:05 C 17 26 00.20 -46 17 04.2 r Y00
2014-10-25 23:56:00 C 18 23 07.35 -31 46 55.3 u 807
2014-10-26 00:00:46 C 18 23 07.93 -31 46 54.2 u 807
2014-10-26 00:05:32 C 18 23 08.43 -31 46 51.4 u 807
2015-04-05 00:28:53 C 06 10 29.32 +46 49 14.0 q I15
2015-04-05 00:31:26 C 06 10 30.94 +46 49 10.4 q I15
2015-04-05 00:33:59 C 06 10 32.60 +46 49 06.6 q I15
2015-04-05 01:02:50 C 06 10 51.65 +46 48 31.9 u H21
2015-04-05 01:04:59 C 06 10 52.98 +46 48 28.6 u H21
2015-04-05 01:07:44 C 06 10 54.70 +46 48 24.6 u H21
2015-04-05 01:09:53 C 06 10 56.07 +46 48 21.7 u H21
2015-04-05 01:12:14 C 06 10 57.53 +46 48 18.6 u H21
2015-04-05 01:14:24 C 06 10 58.91 +46 48 15.3 u H21
2015-04-05 01:16:57 C 06 11 00.53 +46 48 11.7 u H21
2015-04-05 01:18:54 C 06 11 01.79 +46 48 09.0 u H21
2015-04-08 19:30:22 C 07 07 00.86 +43 51 03.2 q K38
2015-04-08 19:45:16 C 07 07 09.45 +43 50 24.9 q K38
2015-04-08 19:52:52 C 07 07 13.83 +43 50 05.4 q K38
2015-04-08 20:00:19 C 07 07 18.12 +43 49 46.1 q K38
2015-04-08 20:07:46 C 07 07 22.41 +43 49 27.0 q K38
2015-04-08 20:15:12 C 07 07 26.71 +43 49 07.6 q K38
2015-04-08 20:22:39 C 07 07 31.00 +43 48 48.3 q K38
2015-04-08 20:30:07 C 07 07 35.30 +43 48 29.0 q K38
2015-04-08 20:37:34 C 07 07 39.60 +43 48 09.7 q K38
2015-04-11 22:37:10 C 07 48 14.11 +40 15 40.3 w Z27
2015-04-11 22:41:12 C 07 48 16.14 +40 15 27.7 w Z27
2015-04-11 22:41:59 C 07 48 16.53 +40 15 24.8 w Z27
2015-04-11 22:43:16 C 07 48 17.20 +40 15 18.9 w Z27
2015-04-12 01:19:05 C 07 49 38.05 +40 07 04.5 q H21
2015-04-12 01:23:38 C 07 49 40.29 +40 06 50.2 q H21
2015-04-12 01:28:11 C 07 49 42.53 +40 06 35.5 q H21
2015-04-12 01:32:44 C 07 49 44.79 +40 06 20.8 q H21
2015-04-12 01:37:17 C 07 49 47.04 +40 06 06.2 q H21
2015-04-12 01:41:38 C 07 49 49.17 +40 05 52.4 q H21
2015-04-12 01:46:10 C 07 49 51.42 +40 05 37.6 q H21
2015-04-13 00:50:56 C 08 01 14.35 +38 50 32.2 q I15
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)