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102191 (1999 SH4)
Classification: Main-belt Asteroid          SPK-ID: 2102191
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2061405189017261 3.3468e-08  
a 2.36323940715871 7.7823e-09 au
q 1.876080009478006 8.0951e-08 au
i 2.221578387818208 3.6942e-06 deg
node 293.3628385440072 0.00011171 deg
peri .7895988922521031 0.00011218 deg
M 353.8901371578302 1.1413e-05 deg
tp 2459223.021067228976
(2021-Jan-08.52106723)
4.2121e-05 TDB
period 1326.966645875164
3.63
6.5546e-06
1.795e-08
d
yr
n .2712954399562711 1.3401e-09 deg/d
Q 2.850398804839413 9.3865e-09 au
  Orbit Determination Parameters
   # obs. used (total)      818  
   data-arc span      7583 days (20.76 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56758  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:40:48  

Additional Information
 Earth MOID = .858039 au 
 Jupiter MOID = 2.34747 au 
 T_jup = 3.520 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.96   n/a E2021B55  
diameter diameter 1.624 km 0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.351   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102191 (1999 SH4)          Discovered 1999-Sep-29 by Korlevic, K. at Visnjan
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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