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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09391960625860793 5.5182e-08  
a 2.239648898201675 1.1826e-08 AU
q 2.029301955525049 1.2396e-07 AU
i 7.138636416268213 6.4226e-06 deg
node 146.8804783169798 4.5534e-05 deg
peri 341.1250982608199 6.0194e-05 deg
M 332.6896263115117 3.6654e-05 deg
tp 2457093.373856596584
(2015-Mar-11.87385660)
0.00012458 JED
period 1224.244997748357
3.35
9.6965e-06
2.655e-08
d
yr
n .2940587877933873 2.3291e-09 deg/d
Q 2.449995840878301 1.2937e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1096  
   data-arc span      15626 days (42.78 yr)  
   first obs. used      1972-05-12  
   last obs. used      2015-02-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5149  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:12:05  

Additional Information
 Earth MOID = 1.04554 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  
rotation period rot_per 6.9785 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2014) http://www.asu.cas.cz/~ppravec/neo.htm]

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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