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27789 Astrakhan (1993 BB7)
Classification: Main-belt Asteroid          SPK-ID: 2027789
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05286360308846638 6.762e-08  
a 3.071493514676582 4.0288e-08 AU
q 2.90912330062792 2.1597e-07 AU
i 10.38299460086543 7.6547e-06 deg
node 152.1937423923158 3.8856e-05 deg
peri 332.6686397579684 8.3664e-05 deg
M 30.51298399555637 7.2712e-05 deg
tp 2456833.850117673529
(2014-Jun-25.35011767)
0.00039707 JED
period 1966.177993154213
5.38
3.8684e-05
1.059e-07
d
yr
n .1830963428811829 3.6024e-09 deg/d
Q 3.233863728725244 4.2417e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      13516 days (37.00 yr)  
   first obs. used      1977-03-12  
   last obs. used      2014-03-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49927  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 01:52:40  

Additional Information
 Earth MOID = 1.92789 AU 
 T_jup = 3.203 
[ 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 12.5 mag n/a MPO250478  

27789 Astrakhan           Discovered 1993 Jan. 23 by E. W. Elst at the European Southern Observatory.
The Astrakhan Khanate, a Tatar feudal state, was established around 1460, after the collapse of the Golden Horde. Its territory included the lower Volga valley, the Volga delta and the steppeland on the right bank of the Volga river.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

[ show close-approach data ]
Alternate Designations
 1993 BB7 = 1977 EK2 = 1999 GO17 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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