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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844392250250918 3.7835e-08  
a 2.353747355745784 1.1882e-08 AU
q 1.919624017547173 9.0191e-08 AU
i .6891903717620433 5.6213e-06 deg
node 176.0855700262161 0.00038634 deg
peri 99.07141433152474 0.00038674 deg
M 207.4984160556963 1.9425e-05 deg
tp 2457559.240366409640
(2016-Jun-19.74036641)
7.3306e-05 JED
period 1318.979952240578
3.61
9.9878e-06
2.735e-08
d
yr
n .2729381893852599 2.0668e-09 deg/d
Q 2.787870693944396 1.4074e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1211  
   data-arc span      14140 days (38.71 yr)  
   first obs. used      1976-04-05  
   last obs. used      2014-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51945  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:18:27  

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 13.9 mag n/a MPO265994  

6788 (1991 PH15)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar (675)
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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