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4808 Ballaero (1925 BA)
Classification: Main-belt Asteroid          SPK-ID: 2004808
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1615878997353603 1.9129e-08  
a 2.669142177631834 9.4047e-09 au
q 2.23784109905324 5.0204e-08 au
i 10.78622696667536 6.0892e-07 deg
node 302.0603383199037 2.2913e-06 deg
peri 139.6891905934732 4.0086e-06 deg
M 27.02152962769357 3.4474e-06 deg
tp 2459080.946190829353
(2020-Aug-19.44619083)
1.5043e-05 TDB
period 1592.780715763892
4.36
8.4182e-06
2.305e-08
d
yr
n .2260198132969894 1.1946e-09 deg/d
Q 3.100443256210428 1.0924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2448  
   data-arc span      35122 days (96.16 yr)  
   first obs. used      1925-01-21  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39809  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:52:28  

Additional Information
 Earth MOID = 1.26537 au 
 Jupiter MOID = 2.13298 au 
 T_jup = 3.338 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.35   n/a MPCxxxxx  
diameter diameter 19.238 km 0.187 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.8976 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Li, B.; Zhao, H.; Han. X.L.; Annable, L.R.; et al. (2013) Minor Planet Bull. 40, 62-63.]
[Owings, L.E. (2013) Minor Planet Bull. 40, 8-10.]
geometric albedo albedo 0.074   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4808 Ballaero           Discovered 1925 Jan. 21 by K. Reinmuth at Heidelberg.
Ball Aerospace and Technology Corporation has contributed to the scientific investigation of minor planets and comets through the development of instruments for the Hubble and Spitzer telescopes, the planned Widefield Infrared Survey Explorer and the spacecraft for the Deep Impact mission to comet 9P/Tempel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050125/MPCPages.arcLast Updated: 2005-06-01

Alternate Designations
 1925 BA = 1972 YV = 1989 VD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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