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48876 (1998 HE103)
Classification: Main-belt Asteroid          SPK-ID: 2048876
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1821243991343383 3.1209e-08  
a 2.202214711450968 7.9359e-09 au
q 1.801137680363161 6.7405e-08 au
i 6.639367889452524 4.7685e-06 deg
node 41.60909827911001 3.3243e-05 deg
peri 230.65746824899 3.6477e-05 deg
M 121.7693872000643 1.6291e-05 deg
tp 2458196.739773024702
(2018-Mar-19.23977302)
5.3339e-05 TDB
period 1193.679996699783
3.27
6.4523e-06
1.767e-08
d
yr
n .3015883662248736 1.6302e-09 deg/d
Q 2.603291742538776 9.3812e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2024  
   data-arc span      7853 days (21.50 yr)  
   first obs. used      1998-04-25  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47124  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:39:06  

Additional Information
 Earth MOID = .793491 au 
 Jupiter MOID = 2.50851 au 
 T_jup = 3.634 
[ 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 15.0   n/a MPO347859  
diameter diameter 4.770 km 0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.102   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48876 (1998 HE103)          Discovered 1998-Apr-25 by Elst, E. W. at La Silla
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HE103 = 1999 VN52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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