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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1821302644326579 3.0612e-08  
a 2.202191940210462 7.7523e-09 au
q 1.801106139808463 6.6384e-08 au
i 6.63850628140498 4.2813e-06 deg
node 41.59907911814822 3.1713e-05 deg
peri 230.7379209572321 3.4649e-05 deg
M 242.3055933557419 1.6108e-05 deg
tp 2459390.742444211814
(2021-Jun-25.24244421)
5.4372e-05 TDB
period 1193.661482494139
3.27
6.303e-06
1.726e-08
d
yr
n .3015930439908181 1.5925e-09 deg/d
Q 2.603277740612462 9.1643e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2160  
   data-arc span      8058 days (22.06 yr)  
   first obs. used      1998-04-25  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46117  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:35:22  

Additional Information
 Earth MOID = .793904 au 
 Jupiter MOID = 2.50934 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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