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

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02921133157888791 1.7225e-08  
a 2.228913013243315 5.2353e-09 au
q 2.163803496152966 3.7951e-08 au
i 1.853392969084495 5.8359e-07 deg
node 326.8320716627264 2.4524e-05 deg
peri 155.8823273068959 3.4862e-05 deg
M 207.758446279863 1.7558e-05 deg
tp 2459910.506739479495
(2022-Nov-27.00673948)
5.9029e-05 TDB
period 1215.452822773856
3.33
4.2823e-06
1.172e-08
d
yr
n .2961859096911906 1.0435e-09 deg/d
Q 2.294022530333664 5.3883e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2400  
   data-arc span      24029 days (65.79 yr)  
   first obs. used      1955-10-25  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4579  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 19:20:16  

Additional Information
 Earth MOID = 1.17984 au 
 Jupiter MOID = 2.69871 au 
 T_jup = 3.642 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.83   n/a MPO636183  
diameter diameter 4.789 km 0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.281   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

Alternate Designations
 1991 SX1 = 1983 CB2 = 1983 CQ1 = 1993 BR5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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