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79653 (1998 SW21)
Classification: Main-belt Asteroid          SPK-ID: 2079653
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1997543995761807 5.2619e-08  
a 2.429653932029501 1.0274e-08 au
q 1.944319869659041 1.301e-07 au
i 7.822350286681639 6.8451e-06 deg
node 353.4626645897423 3.081e-05 deg
peri 35.57958733041034 3.5246e-05 deg
M 237.5512856017542 1.549e-05 deg
tp 2459471.007753681034
(2021-Sep-13.50775368)
6.0802e-05 TDB
period 1383.295791691862
3.79
8.7744e-06
2.402e-08
d
yr
n .2602480266058614 1.6508e-09 deg/d
Q 2.914987994399961 1.2327e-08 au
  Orbit Determination Parameters
   # obs. used (total)      714  
   data-arc span      7536 days (20.63 yr)  
   first obs. used      1998-08-23  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57302  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:44:49  

Additional Information
 Earth MOID = .954393 au 
 Jupiter MOID = 2.56807 au 
 T_jup = 3.468 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456733.5 (2014-Mar-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .198446674858901 5.2154e-08  
q 1.947448447638967 1.285e-07 au
tp 2456705.564442818481
(2014-Feb-17.06444282)
5.6643e-05 TDB
node 353.5153044205331 3.0835e-05 deg
peri 35.76788441036594 3.5354e-05 deg
i 7.819078399522971 6.8411e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      714  
   data-arc span      7536 days (20.63 yr)  
   first obs. used      1998-08-23  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57302  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:44:49  

Additional Information
 Jupiter MOID = 2.56807 au 
 T_jup = 3.468 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.719995477294639E-15 -6.688214892007389E-15 -1.648585077028195E-12 3.245856230811901E-14 -5.247079366401728E-13 -4.309814441874634E-15
q -6.688214892007389E-15 1.651122668145766E-14 4.054781897155153E-12 -8.11737288004959E-14 1.292237158745803E-12 1.101443440056971E-14
tp -1.648585077028195E-12 4.054781897155153E-12 3.208386562787965E-9 -2.982336365448693E-11 9.901965756651884E-10 3.055104224382123E-12
node 3.245856230811901E-14 -8.11737288004959E-14 -2.982336365448693E-11 9.508119387895185E-10 -9.499866169645137E-10 -3.067224632643628E-11
peri -5.247079366401728E-13 1.292237158745803E-12 9.901965756651884E-10 -9.499866169645137E-10 1.249918814628683E-9 3.12407408415738E-11
i -4.309814441874634E-15 1.101443440056971E-14 3.055104224382123E-12 -3.067224632643628E-11 3.12407408415738E-11 4.680040637732601E-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 15.7   n/a MPO337856  

79653 (1998 SW21)          Discovered 1998-Sep-22 by Visnjan at Visnjan
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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