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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1850555480962308 3.8094e-08  
a 2.352546515996727 1.1905e-08 AU
q 1.917194731057074 9.0677e-08 AU
i .689012196611858 5.7575e-06 deg
node 176.153709240411 0.0003906 deg
peri 98.9628795156417 0.000391 deg
M 152.9486697726109 1.9348e-05 deg
tp 2456240.550373534714
(2012-Nov-09.05037353)
6.9057e-05 JED
period 1317.970701067195
3.61
1.0005e-05
2.739e-08
d
yr
n .2731471949327089 2.0734e-09 deg/d
Q 2.78789830093638 1.4108e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1179  
   data-arc span      13846 days (37.91 yr)  
   first obs. used      1976-04-05  
   last obs. used      2014-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52015  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:48:12  

Additional Information
 Earth MOID = .900547 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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