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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1370845587723501 5.2021e-08  
a 2.365270782125086 1.2892e-08 au
q 2.041028680580337 1.2471e-07 au
i 5.006216380311431 5.7951e-06 deg
node 91.66393463214806 6.791e-05 deg
peri 353.3110683791209 7.1431e-05 deg
M 63.61365114268529 2.2553e-05 deg
tp 2457365.716512418902
(2015-Dec-09.21651242)
8.2703e-05 JED
period 1328.677949008345
3.64
1.0863e-05
2.974e-08
d
yr
n .2709460183851813 2.2151e-09 deg/d
Q 2.689512883669835 1.4659e-08 au
  Orbit Determination Parameters
   # obs. used (total)      658  
   data-arc span      8173 days (22.38 yr)  
   first obs. used      1993-10-16  
   last obs. used      2016-03-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55878  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 17:22:21  

Additional Information
 Earth MOID = 1.05567 au 
 Jupiter MOID = 2.51282 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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