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37816 (1998 BT2)
Classification: Main-belt Asteroid          SPK-ID: 2037816
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1369730293316707 5.3943e-08  
a 2.365026758121867 1.8656e-08 AU
q 2.041081878611455 1.3044e-07 AU
i 5.006731067792703 5.9203e-06 deg
node 91.67650336353498 8.7278e-05 deg
peri 353.1344197852476 9.3671e-05 deg
M 261.161568148676 3.8105e-05 deg
tp 2457365.233673352867
(2015-Dec-08.73367335)
0.00014347 JED
period 1328.472335584443
3.64
1.5719e-05
4.304e-08
d
yr
n .2709879538753232 3.2064e-09 deg/d
Q 2.68897163763228 2.1211e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      576  
   data-arc span      7590 days (20.78 yr)  
   first obs. used      1993-10-16  
   last obs. used      2014-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5728  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:59:31  

Additional Information
 Earth MOID = 1.05705 AU 
 T_jup = 3.531 
[ 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 15.2 mag n/a MPO263662  

37816 (1998 BT2)          Discovered 1998-Jan-19 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BT2 = 1993 UR3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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