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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 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1371984050103149 6.5247e-08  
a 2.364517270920418 1.9818e-08 AU
q 2.040109272730794 1.5627e-07 AU
i 5.007121140023393 6.7147e-06 deg
node 91.67864920680218 0.00011769 deg
peri 352.9964569263411 0.00012514 deg
M 98.72233163192278 4.423e-05 deg
tp 2456036.312474432465
(2012-Apr-18.81247443)		 0.00016103 JED
period 1328.043078369898
3.64		 1.6696e-05
4.571e-08		 d
yr
n .2710755440568093 3.4079e-09 deg/d
Q 2.688925269110042 2.2536e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      7126 days (19.51 yr)  
   first obs. used      1993-10-16  
   last obs. used      2013-04-20  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .62355  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 15:26:21  

Additional Information
 Earth MOID = 1.05569 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 PDS3 (MPO 26290)  

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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