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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844392238883079 3.6283e-08  
a 2.353747355476127 1.1693e-08 AU
q 1.919624020002953 8.707e-08 AU
i .6891932843020747 4.9102e-06 deg
node 176.085741399967 0.00034973 deg
peri 99.07124434892836 0.00035009 deg
M 207.4984149792755 1.8366e-05 deg
tp 2457559.240370257448
(2016-Jun-19.74037026)
6.9791e-05 JED
period 1318.979952013915
3.61
9.8286e-06
2.691e-08
d
yr
n .2729381894321636 2.0338e-09 deg/d
Q 2.787870690949302 1.385e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1457  
   data-arc span      14281 days (39.10 yr)  
   first obs. used      1976-04-05  
   last obs. used      2015-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50177  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:56:09  

Additional Information
 Earth MOID = .904835 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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