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37555 (1981 EG47)
Classification: Main-belt Asteroid          SPK-ID: 2037555
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122881913476846 4.588e-08  
a 2.604534173647544 1.3301e-08 au
q 2.284484030673898 1.2056e-07 au
i 2.61820944658297 5.0144e-06 deg
node 246.3448827744259 9.0363e-05 deg
peri 352.2074744843162 9.2236e-05 deg
M 70.6056606065945 1.6439e-05 deg
tp 2458699.386284995518
(2019-Aug-03.88628500)
7.0334e-05 TDB
period 1535.300944291271
4.20
1.1761e-05
3.22e-08
d
yr
n .2344817160040138 1.7963e-09 deg/d
Q 2.92458431662119 1.4936e-08 au
  Orbit Determination Parameters
   # obs. used (total)      658  
   data-arc span      14021 days (38.39 yr)  
   first obs. used      1981-02-12  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54792  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:34:03  

Additional Information
 Earth MOID = 1.27233 au 
 Jupiter MOID = 2.08046 au 
 T_jup = 3.401 
[ 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 15.8   n/a MPO474231  
diameter diameter 2.427 km 0.598 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.109   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37555 (1981 EG47)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EG47 = 1998 GL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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