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120863 (1998 QF94)
Classification: Main-belt Asteroid          SPK-ID: 2120863
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2248637257961563 5.5352e-08  
a 3.176638842743555 2.9535e-08 au
q 2.462327997055449 1.8128e-07 au
i 27.6052432218796 6.3786e-06 deg
node 153.1893226431606 1.0447e-05 deg
peri 235.7014440348545 1.5953e-05 deg
M 275.369598144955 1.4492e-05 deg
tp 2459486.654256046526
(2021-Sep-29.15425605)
8.7336e-05 TDB
period 2067.998359224576
5.66
2.8841e-05
7.896e-08
d
yr
n .174081376029228 2.4278e-09 deg/d
Q 3.890949688431661 3.6177e-08 au
  Orbit Determination Parameters
   # obs. used (total)      667  
   data-arc span      8038 days (22.01 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54039  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:11  

Additional Information
 Earth MOID = 1.54905 au 
 Jupiter MOID = 1.85112 au 
 T_jup = 2.987 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457155.5 (2015-May-13.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2274790830270231 5.5181e-08  
q 2.449922671144414 1.8065e-07 au
tp 2457424.503590073905
(2016-Feb-06.00359007)
7.2209e-05 TDB
node 153.343548956619 1.0444e-05 deg
peri 235.8791203610139 1.5874e-05 deg
i 27.61831417691604 6.3834e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      667  
   data-arc span      8038 days (22.01 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54039  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:11  

Additional Information
 Jupiter MOID = 1.85112 au 
 T_jup = 2.987 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.044967369845659E-15 -9.891048213199585E-15 -1.896465895570995E-12 1.376592902398782E-14 -2.844802663563873E-13 5.692614409574321E-15
q -9.891048213199585E-15 3.263400385066522E-14 6.588119460995058E-12 -4.682679745616589E-14 9.766986485518886E-13 -1.711657010996337E-14
tp -1.896465895570995E-12 6.588119460995058E-12 5.214201492841432E-9 -1.780417630227032E-11 8.881685858008975E-10 4.637951303370797E-12
node 1.376592902398782E-14 -4.682679745616589E-14 -1.780417630227032E-11 1.090792618185126E-10 -9.887609472832362E-11 1.4483110110468E-11
peri -2.844802663563873E-13 9.766986485518886E-13 8.881685858008975E-10 -9.887609472832362E-11 2.519789894976866E-10 -1.197581969219805E-11
i 5.692614409574321E-15 -1.711657010996337E-14 4.637951303370797E-12 1.4483110110468E-11 -1.197581969219805E-11 4.074796381132434E-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 14.3   n/a MPO436583  
diameter diameter 8.984 km 0.322 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.046   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

120863 (1998 QF94)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 QF94 = 1998 SB14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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