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91123 (1998 HP114)
Classification: Main-belt Asteroid          SPK-ID: 2091123
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01291638867105307 3.3927e-08  
a 2.629342370744065 1.435e-08 au
q 2.595380762734267 9.13e-08 au
i 15.5971490878935 4.4517e-06 deg
node 67.05318276592497 1.3899e-05 deg
peri 48.12514487891237 0.0001771 deg
M 162.8068807604334 0.00017659 deg
tp 2458296.229671329182
(2018-Jun-26.72967133)
0.00076293 TDB
period 1557.288716160399
4.26
1.2748e-05
3.49e-08
d
yr
n .2311710065475876 1.8924e-09 deg/d
Q 2.663303978753863 1.4535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      8120 days (22.23 yr)  
   first obs. used      1998-03-24  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49651  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:37:44  

Additional Information
 Earth MOID = 1.61945 au 
 Jupiter MOID = 2.38959 au 
 T_jup = 3.348 
[ 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 14.2   n/a MPO474789  
diameter diameter 5.253 km 0.396 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.176   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91123 (1998 HP114)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 HP114 = 2000 UV55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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