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37548 (1981 EO30)
Classification: Main-belt Asteroid          SPK-ID: 2037548
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1684448619123921 4.5678e-08  
a 2.614902735567192 1.2597e-08 au
q 2.17443580536024 1.2298e-07 au
i 12.2808466648815 5.4112e-06 deg
node 174.3464507365248 1.8264e-05 deg
peri 76.43146403645193 2.3774e-05 deg
M 44.16957564863259 1.5803e-05 deg
tp 2458811.002946243525
(2019-Nov-23.50294624)
6.7262e-05 TDB
period 1544.478033816993
4.23
1.116e-05
3.055e-08
d
yr
n .233088455852171 1.6843e-09 deg/d
Q 3.055369665774144 1.4719e-08 au
  Orbit Determination Parameters
   # obs. used (total)      944  
   data-arc span      14016 days (38.37 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:33:45  

Additional Information
 Earth MOID = 1.2005 au 
 Jupiter MOID = 2.0707 au 
 T_jup = 3.355 
[ 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 14.8   n/a MPO474231  
diameter diameter 2.930 km 0.790 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.247   0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37548 (1981 EO30)          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 EO30 = 1998 FH72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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