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91125 (1998 HT118)
Classification: Main-belt Asteroid          SPK-ID: 2091125
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .124916755529995 4.8282e-08  
a 2.646995429989064 1.3053e-08 au
q 2.316341348972107 1.2775e-07 au
i 14.05223736953599 5.7095e-06 deg
node 127.5115290702254 2.3463e-05 deg
peri 354.4426901390833 3.9749e-05 deg
M 125.8301300690869 3.0143e-05 deg
tp 2458450.692880986011
(2018-Nov-28.19288099)
0.00013055 TDB
period 1572.99815820235
4.31
1.1635e-05
3.185e-08
d
yr
n .2288623150146688 1.6928e-09 deg/d
Q 2.977649511006022 1.4683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      758  
   data-arc span      7685 days (21.04 yr)  
   first obs. used      1998-04-23  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5712  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:03:24  

Additional Information
 Earth MOID = 1.33231 au 
 Jupiter MOID = 2.0944 au 
 T_jup = 3.339 
[ 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 15.1   n/a MPO474789  
diameter diameter 2.438 km 0.267 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.326   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91125 (1998 HT118)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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