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7761 (1990 SL)
Classification: Main-belt Asteroid          SPK-ID: 2007761
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2832270900861974 6.3647e-08  
a 2.364096043715506 1.7649e-08 AU
q 1.694520000569671 1.523e-07 AU
i 24.76874543840385 8.7555e-06 deg
node 76.92123155936591 2.0052e-05 deg
peri 223.2088107226163 2.7368e-05 deg
M 265.0270580384562 2.2893e-05 deg
tp 2457350.762377867671
(2015-Nov-24.26237787)
8.5834e-05 JED
period 1327.688217591696
3.64
1.4868e-05
4.071e-08
d
yr
n .2711479963669532 3.0364e-09 deg/d
Q 3.03367208686134 2.2648e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      11548 days (31.62 yr)  
   first obs. used      1983-10-06  
   last obs. used      2015-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56705  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:59:25  

Additional Information
 Earth MOID = .735232 AU 
 T_jup = 3.375 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO337321  

7761 (1990 SL)          Discovered 1990-Sep-20 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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