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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1838307212389517 3.6173e-08  
a 2.352973210295429 1.1802e-08 au
q 1.920424447990889 8.6703e-08 au
i .6909286367288072 4.9133e-06 deg
node 176.0024090297586 0.00034871 deg
peri 99.33837366620887 0.00034908 deg
M 316.4227987055791 1.8957e-05 deg
tp 2457560.080835518688
(2016-Jun-20.58083552)
7.0139e-05 JED
period 1318.329288716451
3.61
9.9184e-06
2.716e-08
d
yr
n .2730728984641632 2.0545e-09 deg/d
Q 2.785521972599969 1.3971e-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 = .90266 au 
 Jupiter MOID = 2.32265 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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