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100979 (1998 QH27)
Classification: Main-belt Asteroid          SPK-ID: 2100979
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2462024356172569 6.6952e-08  
a 2.341765509993932 1.2174e-08 au
q 1.765217137788938 1.52e-07 au
i 22.59856373523454 9.6864e-06 deg
node 320.19430648 1.3816e-05 deg
peri 73.06027240467677 2.4641e-05 deg
M .777246327431541 1.5448e-05 deg
tp 2458997.674015908370
(2020-May-28.17401591)
5.6168e-05 TDB
period 1308.921299568685
3.58
1.0207e-05
2.795e-08
d
yr
n .2750356343949992 2.1447e-09 deg/d
Q 2.918313882198925 1.5171e-08 au
  Orbit Determination Parameters
   # obs. used (total)      418  
   data-arc span      8940 days (24.48 yr)  
   first obs. used      1996-02-10  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55866  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:04:52  

Additional Information
 Earth MOID = .885656 au 
 Jupiter MOID = 2.87245 au 
 T_jup = 3.423 
[ 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 15.4   n/a MPO426634  
diameter diameter 2.076 km 0.486 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.311   0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100979 (1998 QH27)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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