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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844392238112837 3.8057e-08  
a 2.353747355516108 1.1912e-08 AU
q 1.919624020216855 9.0637e-08 AU
i .6891901051093191 5.7496e-06 deg
node 176.0855609360447 0.00039028 deg
peri 99.07142420879519 0.00039068 deg
M 207.4984154938327 1.9613e-05 deg
tp 2457559.240368386432
(2016-Jun-19.74036839)
7.3937e-05 JED
period 1318.979952047521
3.61
1.0013e-05
2.741e-08
d
yr
n .2729381894252095 2.072e-09 deg/d
Q 2.787870690815361 1.4109e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1180  
   data-arc span      14058 days (38.49 yr)  
   first obs. used      1976-04-05  
   last obs. used      2014-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52157  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:08:09  

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 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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