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5636 Jacobson (1985 QN)
Classification: Main-belt Asteroid          SPK-ID: 2005636
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1328490339013043 5.5208e-08  
a 2.765870571092822 2.1166e-08 AU
q 2.398427337827092 1.455e-07 AU
i 2.402842160573716 5.6675e-06 deg
node 125.5316887228459 0.00011862 deg
peri 194.4429058907933 0.00012091 deg
M 158.6330133071629 2.3658e-05 deg
tp 2456260.149659952231
(2012-Nov-28.64965995)
0.00010577 JED
period 1680.142845809271
4.60
1.9286e-05
5.28e-08
d
yr
n .2142674957060567 2.4596e-09 deg/d
Q 3.133313804358553 2.3978e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1227  
   data-arc span      23244 days (63.64 yr)  
   first obs. used      1951-02-04  
   last obs. used      2014-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50023  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:04:46  

Additional Information
 Earth MOID = 1.38637 AU 
 T_jup = 3.325 
[ 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 12.7 mag n/a MPO279574  

5636 Jacobson           Discovered 1985 Aug. 22 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
Robert A. Jacobson (1944- ) is a noted authority on spacecraft navigation techniques, and he is currently developing ephemerides for natural satellites at the Jet Propulsion Laboratory. He was instrumental in generating the accurate satellite ephemerides used by the Voyager 2 spacecraft project during its encounters with Uranus and Neptune. These ephemerides were developed using both ground-based astrometry and spacecraft optical navigation data. Citation prepared by D. K. Yeomans, a colleague of the honoree.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC22831Last Updated: 2010-02-03

Alternate Designations
 1985 QN = 1970 GG2 = 1979 HC2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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