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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1370117647749459 5.9881e-08  
a 2.365123895884427 1.8645e-08 AU
q 2.041074096997906 1.4398e-07 AU
i 5.006931249511658 6.1055e-06 deg
node 91.67829911809211 0.00010363 deg
peri 353.0993158884074 0.00011048 deg
M 207.0093679422685 4.1098e-05 deg
tp 2457365.100955679443
(2015-Dec-08.60095568)
0.00015561 JED
period 1328.554182114234
3.64
1.5711e-05
4.301e-08
d
yr
n .2709712594687732 3.2043e-09 deg/d
Q 2.689173694770948 2.12e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      560  
   data-arc span      7558 days (20.69 yr)  
   first obs. used      1993-10-16  
   last obs. used      2014-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57946  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:16:47  

Additional Information
 Earth MOID = 1.05664 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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