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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 
[ show covariance matrix ]

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2144-Oct-14 15:57 00:02 Iris 0.0422993544423143 0.0422857976203249 0.0423129146485635 2.89254255081282 2.89254250382778 2504427.164387160 1.53754576844604 901.461513661581 42.529087894719 -41.5383087720248 98701.5286041814 T 22 CATAB v2.0f-lin.ifort 2020-Feb-23 18:45:04 2020-Feb-23 18:45
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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