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
2024-06-07 06:30:58 C 13 02 22.304 -19 04 19.85 X F52
2024-06-07 06:47:01 C 13 02 22.633 -19 04 23.57 X F52
2024-06-07 07:03:04 C 13 02 22.959 -19 04 27.29 X F52
2024-06-07 07:19:06 C 13 02 23.290 -19 04 30.89 X F52
2024-06-09 03:51:26 C 13 03 35.338 -19 14 41.89 V W68
2024-06-09 03:56:04 C 13 03 35.465 -19 14 42.43 V W68
2024-06-09 04:05:17 C 13 03 35.683 -19 14 44.66 V W68
2024-06-10 04:42:01 C 13 04 19.996 -19 20 53.23 V G96
2024-06-10 04:49:34 C 13 04 20.197 -19 20 55.18 V G96
2024-06-10 04:57:05 C 13 04 20.413 -19 20 56.65 V G96
2024-06-10 05:04:37 C 13 04 20.611 -19 20 58.42 V G96
2024-06-29 02:01:05 C 13 24 07.190 -21 17 52.80 V W68
2024-06-29 02:05:47 C 13 24 07.421 -21 17 54.64 V W68
2024-06-29 02:13:45 C 13 24 07.838 -21 17 56.36 V W68
2024-06-29 02:27:50 C 13 24 08.609 -21 17 59.64 V W68
2024-07-03 00:50:41 C 13 29 28.094 -21 44 26.27 V W68
2024-07-03 00:55:21 C 13 29 28.325 -21 44 27.64 V W68
2024-07-03 01:03:29 C 13 29 28.841 -21 44 29.98 V W68
2024-07-03 01:18:20 C 13 29 29.606 -21 44 33.25 V W68
2024-07-03 01:45:31 C 13 29 31.130 -21 44 40.13 V W68
2024-07-03 01:50:16 C 13 29 31.378 -21 44 42.79 V W68
2024-07-03 01:58:22 C 13 29 31.829 -21 44 43.87 V W68
2024-07-03 02:12:26 C 13 29 32.618 -21 44 48.88 V W68
2025-04-16 05:40:16 C 05 42 18.600 +32 43 51.64 V T05
2025-04-16 05:44:49 C 05 42 19.994 +32 43 52.75 V T05
2025-04-16 05:55:19 C 05 42 23.198 +32 43 50.38 V T05
2025-04-16 06:10:28 C 05 42 27.799 +32 43 49.44 V T05
2025-04-25 05:51:10 C 06 48 05.088 +31 13 24.10 V T05
2025-04-25 05:57:10 C 06 48 06.850 +31 13 19.85 V T05
2025-04-25 06:05:44 C 06 48 09.372 +31 13 13.51 V T05
2025-04-25 06:19:48 C 06 48 13.490 +31 13 02.64 V T05
2025-05-08 06:10:11 C 08 14 08.774 +25 43 58.40 V T08
2025-05-08 06:14:57 C 08 14 09.914 +25 43 51.46 V T08
2025-05-08 06:22:57 C 08 14 11.954 +25 43 41.34 V T08
2025-05-08 06:31:34 C 08 14 14.004 +25 43 29.39 V T08
2025-05-08 06:41:35 C 08 14 16.505 +25 43 16.25 V T08
2025-05-16 05:56:34 C 08 58 49.226 +21 16 56.39 V T08
2025-05-16 06:01:58 C 08 58 50.359 +21 16 49.91 V T08
2025-05-16 06:09:58 C 08 58 52.116 +21 16 37.96 V T08
2025-05-16 06:25:28 C 08 58 55.404 +21 16 15.10 V T08
2025-05-17 04:57:56 C 09 03 45.299 +20 43 31.48 V 703
2025-05-17 05:07:45 C 09 03 47.398 +20 43 16.10 V 703
2025-05-19 04:19:32 C 09 13 38.417 +19 34 26.83 V 703
2025-05-19 04:22:48 C 09 13 39.155 +19 34 21.72 V 703
2025-05-19 04:26:03 C 09 13 39.824 +19 34 17.90 V 703
2025-05-19 04:29:19 C 09 13 40.444 +19 34 12.65 V 703
2025-05-19 06:43:46 C 09 14 08.107 +19 30 59.80 V T05
2025-05-19 06:48:19 C 09 14 08.976 +19 30 53.60 V T05
2025-05-19 07:16:07 C 09 14 14.527 +19 30 13.10 V T05
2025-05-19 07:24:01 C 09 14 16.174 +19 30 00.68 V T05
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)