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JPL Small-Body Database Browser
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91102 (1998 HL19)
Classification: Main-belt Asteroid          SPK-ID: 2091102
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07506641970795856 4.8467e-08  
a 2.578820685876266 1.6759e-08 au
q 2.385237849918713 1.2023e-07 au
i 12.23461451227623 5.4503e-06 deg
node 201.6226747284424 2.1885e-05 deg
peri 321.7430453555615 4.5637e-05 deg
M 153.7352373951454 4.3427e-05 deg
tp 2458354.546781080628
(2018-Aug-24.04678108)
0.00018069 TDB
period 1512.621066914339
4.14
1.4745e-05
4.037e-08
d
yr
n .2379974785981128 2.32e-09 deg/d
Q 2.772403521833819 1.8017e-08 au
  Orbit Determination Parameters
   # obs. used (total)      611  
   data-arc span      7722 days (21.14 yr)  
   first obs. used      1998-03-20  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60058  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:03:22  

Additional Information
 Earth MOID = 1.40094 au 
 Jupiter MOID = 2.21937 au 
 T_jup = 3.390 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO344927  
diameter diameter 2.589 km 0.507 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.264   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91102 (1998 HL19)          Discovered 1998-Apr-18 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 HL19 = 2000 UH89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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