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79842 (1998 WG42)
Classification: Main-belt Asteroid          SPK-ID: 2079842
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1049874498280153 4.0795e-08  
a 2.424334663493871 1.0332e-08 au
q 2.16980994964399 9.7338e-08 au
i 7.001116402341133 3.4861e-06 deg
node 55.71859174280402 4.2513e-05 deg
peri 228.4414853878991 4.783e-05 deg
M 14.76262605533459 2.1696e-05 deg
tp 2458943.960963689950
(2020-Apr-04.46096369)
8.3115e-05 TDB
period 1378.755581515441
3.77
8.814e-06
2.413e-08
d
yr
n .2611050173260663 1.6692e-09 deg/d
Q 2.678859377343752 1.1417e-08 au
  Orbit Determination Parameters
   # obs. used (total)      666  
   data-arc span      9510 days (26.04 yr)  
   first obs. used      1994-10-05  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55008  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:21:49  

Additional Information
 Earth MOID = 1.16081 au 
 Jupiter MOID = 2.43489 au 
 T_jup = 3.494 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457520.5 (2016-May-12.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1040612545806567 4.0822e-08  
q 2.171363261766143 9.7278e-08 au
tp 2457566.489619430827
(2016-Jun-26.98961943)
8.4768e-05 TDB
node 55.73877455053086 4.2486e-05 deg
peri 228.6630058808599 4.7875e-05 deg
i 7.003719121262887 3.4874e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      666  
   data-arc span      9510 days (26.04 yr)  
   first obs. used      1994-10-05  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55008  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:21:49  

Additional Information
 Jupiter MOID = 2.43489 au 
 T_jup = 3.494 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.666446627927768E-15 -3.9540267652785E-15 1.227848579940225E-12 7.945926256677607E-15 2.918241440481433E-13 -2.872685895738175E-15
q -3.9540267652785E-15 9.463077534574845E-15 -3.11062648310863E-12 -1.735416700544541E-14 -7.463318149369886E-13 7.080382809654662E-15
tp 1.227848579940225E-12 -3.11062648310863E-12 7.185560466339788E-9 1.069389787659745E-11 1.904260389900788E-9 -6.352479134946174E-12
node 7.945926256677607E-15 -1.735416700544541E-14 1.069389787659745E-11 1.805083829150678E-9 -1.788716429516775E-9 -1.353451642546098E-11
peri 2.918241440481433E-13 -7.463318149369886E-13 1.904260389900788E-9 -1.788716429516775E-9 2.292025770225293E-9 1.179073912630621E-11
i -2.872685895738175E-15 7.080382809654662E-15 -6.352479134946174E-12 -1.353451642546098E-11 1.179073912630621E-11 1.21618286861811E-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 16.0   n/a MPO436339  

79842 (1998 WG42)          Discovered 1998-Nov-19 by ODAS at Caussols
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 WG42 = 2000 EY180 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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