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79140 (1991 SX2)
Classification: Main-belt Asteroid          SPK-ID: 2079140
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04394264415755281 4.5906e-08  
a 2.95663193822043 2.0965e-08 au
q 2.826709713054354 1.4412e-07 au
i 3.159342683365727 5.3312e-06 deg
node 191.3410157981517 8.6309e-05 deg
peri 81.85873727457731 0.00010831 deg
M 336.3868307565214 6.3895e-05 deg
tp 2459122.299667262833
(2020-Sep-29.79966726)
0.00032916 TDB
period 1856.924827095362
5.08
1.9751e-05
5.408e-08
d
yr
n .1938689142107702 2.0621e-09 deg/d
Q 3.086554163386507 2.1886e-08 au
  Orbit Determination Parameters
   # obs. used (total)      612  
   data-arc span      10509 days (28.77 yr)  
   first obs. used      1991-09-09  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57623  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:01:59  

Additional Information
 Earth MOID = 1.81276 au 
 Jupiter MOID = 1.949 au 
 T_jup = 3.264 
[ 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 15.1   n/a MPO250889  

79140 (1991 SX2)          Discovered 1991-Sep-29 by Spacewatch at Kitt Peak
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1991 SX2 = 1999 GE12 = 2001 SQ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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