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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1380017549838355 3.3403e-08  
a 2.36426279607847 8.891e-09 au
q 2.037990380976651 7.8285e-08 au
i 5.008045545654817 3.9401e-06 deg
node 91.6196860111809 5.0072e-05 deg
peri 353.0643147669353 5.2646e-05 deg
M 83.34947817592271 1.6744e-05 deg
tp 2458693.072698023355
(2019-Jul-28.57269802)
6.1262e-05 TDB
period 1327.828693516196
3.64
7.4901e-06
2.051e-08
d
yr
n .2711193106143018 1.5293e-09 deg/d
Q 2.690535211180289 1.0118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1064  
   data-arc span      9685 days (26.52 yr)  
   first obs. used      1993-10-16  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53582  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:28:45  

Additional Information
 Earth MOID = 1.05428 au 
 Jupiter MOID = 2.50698 au 
 T_jup = 3.531 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO358976  
diameter diameter 4.432 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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