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6788 (1991 PH15)
Classification: Main-belt Asteroid          SPK-ID: 2006788
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1838505856245335 3.6073e-08  
a 2.352940169078248 1.1632e-08 au
q 1.920350741053723 8.6498e-08 au
i .6909689275378545 4.8603e-06 deg
node 176.0037724278108 0.00034638 deg
peri 99.36494372296035 0.00034674 deg
M 11.01898836004078 1.9102e-05 deg
tp 2457560.149030260835
(2016-Jun-20.64903026)
6.9768e-05 JED
period 1318.301520199218
3.61
9.7755e-06
2.676e-08
d
yr
n .2730786504331709 2.0249e-09 deg/d
Q 2.785529597102772 1.377e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1460  
   data-arc span      14556 days (39.85 yr)  
   first obs. used      1976-04-05  
   last obs. used      2016-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50678  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:20:46  

Additional Information
 Earth MOID = .903921 au 
 Jupiter MOID = 2.32395 au 
 T_jup = 3.533 
[ 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 14.0 mag n/a MPO324371  

6788 (1991 PH15)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 PH15 = 1976 GS8 = 1984 SA4 = 1987 KD = 1987 KM5 = 1990 DE4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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