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7966 Richardbaum (1996 DA)
Classification: Main-belt Asteroid          SPK-ID: 2007966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1841633759616654 2.8232e-08  
a 2.372786533309235 7.611e-09 au
q 1.935806154898629 6.5278e-08 au
i 3.257283843950914 3.0602e-06 deg
node 97.68622018290357 6.4169e-05 deg
peri 161.1205695368317 6.4953e-05 deg
M 154.5334337080033 1.0986e-05 deg
tp 2458427.431701996148
(2018-Nov-04.93170200)
3.9618e-05 TDB
period 1335.015875407303
3.66
6.4233e-06
1.759e-08
d
yr
n .2696597146383497 1.2974e-09 deg/d
Q 2.80976691171984 9.0127e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2000  
   data-arc span      11705 days (32.05 yr)  
   first obs. used      1988-01-11  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49669  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:42:32  

Additional Information
 Earth MOID = .920891 au 
 Jupiter MOID = 2.25158 au 
 T_jup = 3.518 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO347589  
diameter diameter 3.800 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.680 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Kurtenkov, A.; Ovcharov, E.P. (2014) Minor Planet Bull. 41, 193.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.337   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7966 Richardbaum           Discovered 1996 Feb. 18 by T. Kobayashi at Oizumi.
Richard Myer Baum (b. 1930) is a British planetary observer and writer on astronomical history. He has authored many papers in the Journal of the British Astronomical Association and directed the Mercury and Venus section for many years. He was awarded the Association's Lydia Brown Medal in 1988.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031110/MPCPages.arcLast Updated: 2003-11-12

Alternate Designations
 1996 DA = 1988 AN5 = 1993 NP2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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