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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .190003620304797 5.9028e-08  
a 2.668166592194278 1.5732e-08 au
q 2.161205280101052 1.6076e-07 au
i 14.34267823337106 5.5483e-06 deg
node 63.94424517700097 1.5688e-05 deg
peri 326.3067554447414 1.8951e-05 deg
M 320.6455044192131 1.1319e-05 deg
tp 2459570.524217468017
(2021-Dec-22.02421747)
5.04e-05 TDB
period 1591.907541029991
4.36
1.4079e-05
3.855e-08
d
yr
n .2261437870738862 2.0001e-09 deg/d
Q 3.175127904287504 1.8721e-08 au
  Orbit Determination Parameters
   # obs. used (total)      901  
   data-arc span      8512 days (23.30 yr)  
   first obs. used      1998-04-20  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .533  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:01:32  

Additional Information
 Earth MOID = 1.18216 au 
 Jupiter MOID = 2.28043 au 
 T_jup = 3.312 
[ 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 14.82   n/a MPO637238  
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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