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91111 (1998 HU47)
Classification: Main-belt Asteroid          SPK-ID: 2091111
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05353613542993811 3.4488e-08  
a 2.695786292579475 1.2921e-08 au
q 2.55146431252977 8.9195e-08 au
i 10.71903932710903 4.2269e-06 deg
node 55.7581287757621 2.1522e-05 deg
peri 57.07906842839262 5.0074e-05 deg
M 172.0692866459074 4.5149e-05 deg
tp 2458623.770530164675
(2019-May-20.27053016)
0.00020145 TDB
period 1616.689500858889
4.43
1.1623e-05
3.182e-08
d
yr
n .2226772672233876 1.601e-09 deg/d
Q 2.840108272629181 1.3613e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1790  
   data-arc span      8539 days (23.38 yr)  
   first obs. used      1998-03-24  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49205  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:01:33  

Additional Information
 Earth MOID = 1.58524 au 
 Jupiter MOID = 2.26575 au 
 T_jup = 3.343 
[ 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 13.81   n/a MPO637238  
diameter diameter 5.521 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.277   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91111 (1998 HU47)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 HU47 = 2000 SC125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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