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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2463428898314571 6.5445e-08  
a 2.342228403366334 1.1052e-08 au
q 1.765237089835752 1.477e-07 au
i 22.59876643480273 7.6713e-06 deg
node 320.1930240720334 1.0825e-05 deg
peri 73.07612469048759 2.3751e-05 deg
M 55.75769865235217 1.4852e-05 deg
tp 2458997.710889031053
(2020-May-28.21088903)
5.4124e-05 TDB
period 1309.309417592709
3.58
9.267e-06
2.537e-08
d
yr
n .2749541057009233 1.9461e-09 deg/d
Q 2.919219716896917 1.3774e-08 au
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      9112 days (24.95 yr)  
   first obs. used      1996-02-10  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49386  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:26:41  

Additional Information
 Earth MOID = .884438 au 
 Jupiter MOID = 2.87277 au 
 T_jup = 3.422 
[ 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 15.51   n/a E2021B55  
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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