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2063 Bacchus (1977 HB)
Classification: Apollo [NEO]          SPK-ID: 2002063
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 122 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3495079305655313 1.1853e-08  
a 1.078099128582201 2.2426e-10 au
q .7012949332069335 1.2773e-08 au
i 9.431132049243017 4.9254e-06 deg
node 33.08306686230173 1.4724e-05 deg
peri 55.36126144253465 1.1737e-05 deg
M 273.7344517516468 5.0464e-06 deg
tp 2459098.476372357604
(2020-Sep-05.97637236)
5.7397e-06 TDB
period 408.8711515191795
1.12
1.2758e-07
3.493e-10
d
yr
n .8804729770305474 2.7473e-10 deg/d
Q 1.454903323957469 3.0265e-10 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   # delay obs. used      7  
   # Doppler obs. used      5  
   data-arc span      15816 days (43.30 yr)  
   first obs. used      1977-04-24  
   last obs. used      2020-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39523  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-13 05:59:31  

Additional Information
 Earth MOID = .0670798 au 
 Jupiter MOID = 3.76994 au 
 T_jup = 5.668 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3   n/a MPO337263  
diameter diameter 1.024 km 0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
extent extent 1.11 x 0.53 x 0.50 km n/a Benner et al. Icarus, 1999, 139:309  
rotation period rot_per 14.904 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1998) Icarus 136, 124-153.]
[Benner, L.A.M.; Hudson, R.S.; Ostro, S.J.; Rosema, K.D.; et al. (1999) Icarus 139, 309-327.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.]
geometric albedo albedo 0.203   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2063 Bacchus (1977 HB)          Discovered 1977-Apr-24 by Kowal, C. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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