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7768 (1991 SX1)
Classification: Main-belt Asteroid          SPK-ID: 2007768
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0294522503635555 5.6448e-08  
a 2.228201292986083 1.056e-08 AU
q 2.162575750644659 1.2338e-07 AU
i 1.855027579177369 6.0562e-06 deg
node 326.8952911624994 0.00012997 deg
peri 155.6103475023739 0.00015694 deg
M 217.9648685740663 8.9428e-05 deg
tp 2457479.817556228923
(2016-Apr-01.31755623)
0.00030304 JED
period 1214.870704945228
3.33
8.636e-06
2.364e-08
d
yr
n .2963278302247239 2.1065e-09 deg/d
Q 2.293826835327507 1.0871e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1110  
   data-arc span      21492 days (58.84 yr)  
   first obs. used      1955-10-25  
   last obs. used      2014-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51475  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:52:21  

Additional Information
 Earth MOID = 1.1783 AU 
 T_jup = 3.643 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a MPO263418  

7768 (1991 SX1)          Discovered 1991-Sep-16 by Holt, H. E. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 SX1 = 1983 CB2 = 1983 CQ1 = 1993 BR5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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