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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844392246513961 3.6602e-08  
a 2.353747355731573 1.173e-08 AU
q 1.919624018415168 8.7712e-08 AU
i .6891943084577149 5.0582e-06 deg
node 176.0858126054831 0.00035823 deg
peri 99.07117215801648 0.0003586 deg
M 207.4984156984387 1.8558e-05 deg
tp 2457559.240367713512
(2016-Jun-19.74036771)
7.0424e-05 JED
period 1318.979952228633
3.61
9.8597e-06
2.699e-08
d
yr
n .2729381893877317 2.0403e-09 deg/d
Q 2.787870693047979 1.3893e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1346  
   data-arc span      14206 days (38.89 yr)  
   first obs. used      1976-04-05  
   last obs. used      2015-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50667  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:05:44  

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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