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20235 (1998 BA7)
Classification: Main-belt Asteroid          SPK-ID: 2020235
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1111228751289376 3.605e-08  
a 2.411186485868273 8.4985e-09 au
q 2.14324851108655 8.7099e-08 au
i 3.278121204471526 3.5204e-06 deg
node 97.0393111757682 7.1318e-05 deg
peri 105.646205548364 7.3012e-05 deg
M 350.34744712875 1.6763e-05 deg
tp 2459237.167754629989
(2021-Jan-22.66775463)
6.3736e-05 TDB
period 1367.554453507656
3.74
7.2301e-06
1.979e-08
d
yr
n .2632436310500338 1.3917e-09 deg/d
Q 2.679124460649995 9.4429e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1496  
   data-arc span      10867 days (29.75 yr)  
   first obs. used      1991-06-06  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51513  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:15:45  

Additional Information
 Earth MOID = 1.14164 au 
 Jupiter MOID = 2.27973 au 
 T_jup = 3.509 
[ 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 14.73   n/a E2021B10  
diameter diameter 6.424 km 0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20235 (1998 BA7)          Discovered 1998-Jan-24 by Kobayashi, T. at Oizumi
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 BA7 = 1999 NZ38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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