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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1368768764181467 5.2075e-08  
a 2.364565307372749 1.4526e-08 au
q 2.040910994012852 1.2522e-07 au
i 5.006752807664735 5.8006e-06 deg
node 91.6719470036999 7.4282e-05 deg
peri 353.225795403587 7.8427e-05 deg
M 9.491242706722087 2.7135e-05 deg
tp 2457365.485657519049
(2015-Dec-08.98565752)
9.9956e-05 JED
period 1328.083548449869
3.64
1.2238e-05
3.351e-08
d
yr
n .2710672836962628 2.4979e-09 deg/d
Q 2.688219620732646 1.6515e-08 au
  Orbit Determination Parameters
   # obs. used (total)      620  
   data-arc span      8099 days (22.17 yr)  
   first obs. used      1993-10-16  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56301  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:34:06  

Additional Information
 Earth MOID = 1.05667 au 
 Jupiter MOID = 2.51551 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 15.3 mag n/a MPO358976  

37816 (1998 BT2)          Discovered 1998-Jan-19 by Shimizu, Y., Urata, T. at Nachi-Katsuura
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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