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JPL Small-Body Database Browser
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136921 (1998 HV147)
Classification: Main-belt Asteroid          SPK-ID: 2136921
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1925768358179646 7.8952e-08  
a 2.328376323455174 1.608e-08 au
q 1.879984978490711 1.8628e-07 au
i 25.64877570264947 1.0167e-05 deg
node 49.01257396291444 2.2624e-05 deg
peri 225.7673031303858 3.6764e-05 deg
M 38.20688740787092 3.0927e-05 deg
tp 2458862.773552242556
(2020-Jan-14.27355224)
0.000111 TDB
period 1297.711605328672
3.55
1.3443e-05
3.68e-08
d
yr
n .2774114052165101 2.8737e-09 deg/d
Q 2.776767668419637 1.9176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      7681 days (21.03 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70689  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:35:32  

Additional Information
 Earth MOID = .92047 au 
 Jupiter MOID = 2.38742 au 
 T_jup = 3.418 
[ 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 16.3   n/a MPO229683  
diameter diameter 2.788 km 0.724 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.065   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

136921 (1998 HV147)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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