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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2462024427950411 6.6549e-08  
a 2.341765508577308 1.2055e-08 au
q 1.765217119912403 1.5089e-07 au
i 22.59856201571299 9.2577e-06 deg
node 320.194304745579 1.3502e-05 deg
peri 73.06027209775178 2.4532e-05 deg
M .777249018540458 1.5237e-05 deg
tp 2458997.674006126352
(2020-May-28.17400613)
5.5401e-05 TDB
period 1308.92129838096
3.58
1.0107e-05
2.767e-08
d
yr
n .2750356346445685 2.1238e-09 deg/d
Q 2.918313897242213 1.5023e-08 au
  Orbit Determination Parameters
   # obs. used (total)      480  
   data-arc span      9029 days (24.72 yr)  
   first obs. used      1996-02-10  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53766  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:08  

Additional Information
 Earth MOID = .885656 au 
 Jupiter MOID = 2.87245 au 
 T_jup = 3.423 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456243.5 (2012-Nov-12.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2470561143556627 6.6826e-08  
q 1.763159767414965 1.5166e-07 au
tp 2456379.768520348557
(2013-Mar-28.26852035)
5.8167e-05 TDB
node 320.3276319566213 1.3502e-05 deg
peri 72.97072594694453 2.4362e-05 deg
i 22.58788088685222 9.2568e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      480  
   data-arc span      9029 days (24.72 yr)  
   first obs. used      1996-02-10  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53766  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:03:08  

Additional Information
 Jupiter MOID = 2.87245 au 
 T_jup = 3.423 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.465685504290768E-15 -1.012240800444906E-14 -2.456125821960282E-12 -7.63040732717254E-15 -9.447794828530761E-13 -8.070833450454738E-14
q -1.012240800444906E-14 2.300085205341717E-14 5.566302237409761E-12 1.857638281433974E-14 2.133556399231294E-12 1.824047923638976E-13
tp -2.456125821960282E-12 5.566302237409761E-12 3.383451619085327E-9 -2.873646652198369E-12 1.189170528661574E-9 5.020234813661138E-11
node -7.63040732717254E-15 1.857638281433974E-14 -2.873646652198369E-12 1.822958456940251E-10 -1.679995164782657E-10 4.395098221642407E-11
peri -9.447794828530761E-13 2.133556399231294E-12 1.189170528661574E-9 -1.679995164782657E-10 5.934920097134248E-10 -2.191839706065068E-11
i -8.070833450454738E-14 1.824047923638976E-13 5.020234813661138E-11 4.395098221642407E-11 -2.191839706065068E-11 8.568850783415174E-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 15.4   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

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