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37540 (1981 ES7)
Classification: Main-belt Asteroid          SPK-ID: 2037540
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1629942317737051 3.7385e-08  
a 2.306262418134224 1.0157e-08 au
q 1.930354947021869 8.7309e-08 au
i 4.573873218782909 4.1041e-06 deg
node 223.5176720556019 5.2929e-05 deg
peri 15.50689101026902 5.505e-05 deg
M 22.31671806606926 1.7373e-05 deg
tp 2458921.197051283776
(2020-Mar-12.69705128)
6.1595e-05 TDB
period 1279.267921623619
3.50
8.4506e-06
2.314e-08
d
yr
n .2814109491177546 1.8589e-09 deg/d
Q 2.68216988924658 1.1812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      740  
   data-arc span      13847 days (37.91 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53583  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:33:44  

Additional Information
 Earth MOID = .918731 au 
 Jupiter MOID = 2.32309 au 
 T_jup = 3.566 
[ 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 15.6   n/a MPO431923  
diameter diameter 2.078 km 0.436 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.215   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37540 (1981 ES7)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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