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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .246342889622145 6.5432e-08  
a 2.342228402776003 1.0867e-08 au
q 1.765237089881101 1.4767e-07 au
i 22.59876638822611 7.6427e-06 deg
node 320.1930235016402 1.0305e-05 deg
peri 73.07612488275863 2.3386e-05 deg
M 55.75769857848552 1.4842e-05 deg
tp 2458997.710889376370
(2020-May-28.21088938)
5.4087e-05 TDB
period 1309.309417097714
3.58
9.1122e-06
2.495e-08
d
yr
n .2749541058048718 1.9136e-09 deg/d
Q 2.919219715670904 1.3544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      711  
   data-arc span      9157 days (25.07 yr)  
   first obs. used      1996-02-10  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47792  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:39  

Additional Information
 Earth MOID = .884438 au 
 Jupiter MOID = 2.87277 au 
 T_jup = 3.422 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457171.5 (2015-May-29.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2474241356114047 6.5885e-08  
q 1.762008137525452 1.4904e-07 au
tp 2457687.902159791535
(2016-Oct-26.40215979)
5.4627e-05 TDB
node 320.3134263275659 1.0311e-05 deg
peri 72.83871216608522 2.3208e-05 deg
i 22.59588255406248 7.642e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      711  
   data-arc span      9157 days (25.07 yr)  
   first obs. used      1996-02-10  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47792  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:39  

Additional Information
 Jupiter MOID = 2.87277 au 
 T_jup = 3.422 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.340769531191515E-15 -9.811820620701174E-15 -1.997795558976043E-12 3.374174229311055E-14 -9.798592352523413E-13 -5.07353191295353E-14
q -9.811820620701174E-15 2.221305020063532E-14 4.585552453811233E-12 -7.708892914447351E-14 2.230799577633257E-12 1.128973747732113E-13
tp -1.997795558976043E-12 4.585552453811233E-12 2.984163429342287E-9 -4.331503004634604E-11 1.117536530857672E-9 1.060569293508924E-11
node 3.374174229311055E-14 -7.708892914447351E-14 -4.331503004634604E-11 1.063089059782568E-10 -1.129813128608226E-10 1.750605657754212E-12
peri -9.798592352523413E-13 2.230799577633257E-12 1.117536530857672E-9 -1.129813128608226E-10 5.38621912188403E-10 5.556657438113558E-12
i -5.07353191295353E-14 1.128973747732113E-13 1.060569293508924E-11 1.750605657754212E-12 5.556657438113558E-12 5.839971816780192E-11

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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