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
2024-04-30 09:24:54 C 13 34 35.490 -14 49 43.54 V 703
2024-04-30 09:28:09 C 13 34 35.000 -14 49 45.08 V 703
2024-04-30 20:58:50 C 13 33 03.22 -14 55 56.7 X G02
2024-04-30 21:06:40 C 13 33 02.11 -14 56 00.7 X G02
2024-04-30 21:14:28 C 13 33 01.00 -14 56 04.8 X G02
2024-04-30 22:10:31 B 13 32 53.359 -14 56 34.80 V L65
2024-04-30 22:14:38 B 13 32 52.774 -14 56 36.92 V L65
2024-04-30 22:18:46 B 13 32 52.198 -14 56 39.16 V L65
2024-05-01 08:42:15 C 13 31 30.527 -15 01 41.17 X F52
2024-05-01 09:00:25 C 13 31 27.970 -15 01 50.37 X F52
2024-05-01 09:34:43 C 13 31 23.134 -15 02 07.44 X F52
2024-05-01 22:08:09 C 13 29 47.448 -15 08 29.40 Z C23
2024-05-01 22:13:31 C 13 29 46.711 -15 08 32.86 Z C23
2024-05-01 22:18:54 C 13 29 46.015 -15 08 34.76 Z C23
2024-05-02 00:53:24 B 13 29 28.03 -15 09 19.9 q X33
2024-05-02 00:55:26 B 13 29 27.74 -15 09 21.0 q X33
2024-05-02 00:57:28 B 13 29 27.51 -15 09 21.3 q X33
2024-05-02 20:24:18 C 13 27 04.974 -15 18 52.46 V 089
2024-05-02 20:26:40 C 13 27 04.673 -15 18 53.69 V 089
2024-05-02 20:29:02 C 13 27 04.376 -15 18 54.68 V 089
2024-05-02 20:31:24 C 13 27 04.096 -15 18 55.86 V 089
2024-05-02 20:33:46 C 13 27 03.796 -15 18 56.58 V 089
2024-05-02 20:36:08 C 13 27 03.471 -15 18 57.60 V 089
2024-05-02 20:38:30 C 13 27 03.193 -15 18 59.03 V 089
2024-05-02 20:40:52 C 13 27 02.887 -15 18 59.97 V 089
2024-05-02 20:45:36 C 13 27 02.308 -15 19 02.12 V 089
2024-05-02 21:58:22 C 13 26 53.450 -15 18 50.26 V M22
2024-05-02 22:02:55 C 13 26 52.872 -15 18 52.13 V M22
2024-05-02 22:12:13 C 13 26 51.691 -15 18 56.27 V M22
2024-05-02 23:02:04 C 13 26 45.394 -15 19 18.19 V M22
2024-05-03 03:32:08 C 13 26 14.842 -15 21 21.56 V W68
2024-05-03 03:36:45 C 13 26 14.273 -15 21 23.40 V W68
2024-05-03 03:52:56 C 13 26 12.233 -15 21 30.64 V W68
2024-05-03 04:02:06 C 13 26 11.081 -15 21 34.70 V W68
2024-05-03 22:52:39 C 13 24 04.001 -15 30 29.09 Z C23
2024-05-03 22:54:59 C 13 24 03.744 -15 30 29.95 Z C23
2024-05-03 22:57:51 C 13 24 03.401 -15 30 31.43 Z C23
2024-05-04 03:27:23 C 13 23 34.301 -15 31 41.34 V W68
2024-05-04 03:31:59 C 13 23 33.766 -15 31 43.36 V W68
2024-05-04 03:39:53 C 13 23 32.832 -15 31 46.63 V W68
2024-05-04 03:54:32 C 13 23 31.106 -15 31 52.68 V W68
2024-05-04 21:05:25 C 13 21 42.91 -15 39 36.9 X G02
2024-05-04 21:11:18 C 13 21 42.28 -15 39 39.2 X G02
2024-05-04 21:16:59 C 13 21 41.65 -15 39 41.6 X G02
2024-05-05 01:53:18 B 13 21 13.81 -15 41 06.3 q X33
2024-05-05 01:55:20 B 13 21 13.66 -15 41 07.4 q X33
2024-05-05 01:57:23 B 13 21 13.44 -15 41 06.3 q X33
2024-05-05 21:38:47 C 13 19 16.423 -15 48 27.58 V M22
2024-05-05 21:43:16 C 13 19 15.955 -15 48 29.20 V M22
2024-05-05 21:51:18 C 13 19 15.118 -15 48 32.29 V M22
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)