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27765 Brockhaus (1991 RJ41)
Classification: Main-belt Asteroid          SPK-ID: 2027765
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .127662441592753 8.0701e-08  
a 2.283159401388971 1.3047e-08 AU
q 1.991685697662207 1.8079e-07 AU
i 7.67796715675468 6.9937e-06 deg
node 12.71319556925729 4.0323e-05 deg
peri 9.051109886584403 4.5726e-05 deg
M 246.7324485083437 2.3835e-05 deg
tp 2457396.965853353985
(2016-Jan-09.46585335)
8.4982e-05 JED
period 1260.093515996488
3.45
1.0801e-05
2.957e-08
d
yr
n .2856930818466361 2.4488e-09 deg/d
Q 2.574633105115736 1.4712e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      797  
   data-arc span      8324 days (22.79 yr)  
   first obs. used      1991-09-10  
   last obs. used      2014-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51129  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:45:02  

Additional Information
 Earth MOID = .994452 AU 
 T_jup = 3.581 
[ 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 14.7 mag n/a MPO253548  

27765 Brockhaus           Discovered 1991 Sept. 10 by F. Börngen at Tautenburg.
In 1805, German publisher Friedrich Arnold Brockhaus (1772-1823) founded the F. A. Brockhaus publishing house. With its headquarters in Leipzig since 1817, it was originally best known for its encyclopedias, which served as models for other reference books.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1991 RJ41 = 1991 TM13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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