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8107 (1995 BR4)
Classification: Main-belt Asteroid          SPK-ID: 2008107
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09378240500091961 6.139e-08  
a 2.239300731449668 1.3248e-08 AU
q 2.029293723333999 1.355e-07 AU
i 7.138548739875842 7.0613e-06 deg
node 146.8822878859345 4.978e-05 deg
peri 341.177968579739 6.4718e-05 deg
M 273.8078022574645 4.0297e-05 deg
tp 2457093.543783982951
(2015-Mar-12.04378398)
0.00013726 JED
period 1223.959534585582
3.35
1.0862e-05
2.974e-08
d
yr
n .2941273709035583 2.6102e-09 deg/d
Q 2.449307739565336 1.4491e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      15181 days (41.56 yr)  
   first obs. used      1972-05-12  
   last obs. used      2013-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52752  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:10:17  

Additional Information
 Earth MOID = 1.04526 AU 
 T_jup = 3.620 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO279600  

8107 (1995 BR4)          Discovered 1995-Jan-31 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1995 BR4 = 1972 JT = 1986 NQ = 1990 SL3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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