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91101 (1998 HK15)
Classification: Main-belt Asteroid          SPK-ID: 2091101
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1908178275487837 6.7494e-08  
a 2.666535356961511 1.594e-08 au
q 2.157712873064095 1.8224e-07 au
i 14.35609119045672 5.9838e-06 deg
node 64.00485623516801 1.6332e-05 deg
peri 326.4851612230015 1.9779e-05 deg
M 230.8967656787274 1.2107e-05 deg
tp 2459570.866577168399
(2021-Dec-22.36657717)
5.4507e-05 TDB
period 1590.447899001943
4.35
1.4261e-05
3.904e-08
d
yr
n .2263513317386325 2.0296e-09 deg/d
Q 3.175357840858927 1.8981e-08 au
  Orbit Determination Parameters
   # obs. used (total)      852  
   data-arc span      8091 days (22.15 yr)  
   first obs. used      1998-04-20  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5445  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:37:44  

Additional Information
 Earth MOID = 1.17923 au 
 Jupiter MOID = 2.27738 au 
 T_jup = 3.313 
[ 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 14.8   n/a MPO337938  
diameter diameter 2.971 km 0.684 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.219   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91101 (1998 HK15)          Discovered 1998-Apr-20 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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