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79509 (1998 HT136)
Classification: Outer Main-belt Asteroid          SPK-ID: 2079509
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09523910535225287 5.7238e-08  
a 3.212984532082816 3.0062e-08 au
q 2.906982759736621 1.9351e-07 au
i 6.122835458456421 5.5168e-06 deg
node 128.5591146479882 4.9175e-05 deg
peri 60.95826615487794 5.5555e-05 deg
M 311.2271052660116 2.7434e-05 deg
tp 2459285.495111443695
(2021-Mar-11.99511144)
0.00016223 TDB
period 2103.59136318051
5.76
2.9523e-05
8.083e-08
d
yr
n .1711358994437496 2.4018e-09 deg/d
Q 3.51898630442901 3.2925e-08 au
  Orbit Determination Parameters
   # obs. used (total)      561  
   data-arc span      21757 days (59.57 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58868  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:41:37  

Additional Information
 Earth MOID = 1.91442 au 
 Jupiter MOID = 1.4653 au 
 T_jup = 3.175 
[ 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 14.7   n/a MPO459362  
diameter diameter 5.921 km 0.471 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79509 (1998 HT136)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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