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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2464428273040991 6.5425e-08  
a 2.342223196710257 1.0905e-08 au
q 1.764999089935736 1.4762e-07 au
i 22.59907666509143 7.6433e-06 deg
node 320.192862891504 1.0268e-05 deg
peri 73.07276781265726 2.3328e-05 deg
M 109.6406540201549 1.4808e-05 deg
tp 2458997.741493912739
(2020-May-28.24149391)
5.4037e-05 TDB
period 1309.305051801543
3.58
9.1435e-06
2.503e-08
d
yr
n .2749550225172175 1.9202e-09 deg/d
Q 2.919447303484778 1.3592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      9185 days (25.15 yr)  
   first obs. used      1996-02-10  
   last obs. used      2021-04-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47537  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:01:01  

Additional Information
 Earth MOID = .884831 au 
 Jupiter MOID = 2.87303 au 
 T_jup = 3.422 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457185.5 (2015-Jun-12.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2474187158482131 6.5879e-08  
q 1.762036726288434 1.4904e-07 au
tp 2457687.897598836255
(2016-Oct-26.39759884)
5.4603e-05 TDB
node 320.3135555029837 1.0274e-05 deg
peri 72.83625310021584 2.316e-05 deg
i 22.5958753953936 7.6424e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      9185 days (25.15 yr)  
   first obs. used      1996-02-10  
   last obs. used      2021-04-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47537  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:01:01  

Additional Information
 Jupiter MOID = 2.87303 au 
 T_jup = 3.422 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.340035577857538E-15 -9.810756676755151E-15 -1.996274998051171E-12 3.280296647880753E-14 -9.781664026108407E-13 -5.06793853468017E-14
q -9.810756676755151E-15 2.221188563537179E-14 4.582805912407515E-12 -7.49578363393166E-14 2.227340306685558E-12 1.127842167543109E-13
tp -1.996274998051171E-12 4.582805912407515E-12 2.981541016883996E-9 -4.221044477164204E-11 1.115085059268278E-9 1.05190198310614E-11
node 3.280296647880753E-14 -7.49578363393166E-14 -4.221044477164204E-11 1.055522032901311E-10 -1.118636811731171E-10 1.822407205423383E-12
peri -9.781664026108407E-13 2.227340306685558E-12 1.115085059268278E-9 -1.118636811731171E-10 5.364030010699704E-10 5.449199031388933E-12
i -5.06793853468017E-14 1.127842167543109E-13 1.05190198310614E-11 1.822407205423383E-12 5.449199031388933E-12 5.8405634997483E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.56   n/a MPCxxxxx  
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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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