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9317 (1988 RO4)
Classification: Main-belt Asteroid          SPK-ID: 2009317
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1158737668364284 7.7752e-08  
a 3.000834015720327 3.498e-08 AU
q 2.653116074667926 2.4499e-07 AU
i 11.08487980531504 8.7652e-06 deg
node 161.7322503906929 3.2858e-05 deg
peri 243.1197331352581 4.9372e-05 deg
M 328.5148705351274 4.0035e-05 deg
tp 2457166.559746518031
(2015-May-24.05974652)
0.00021256 JED
period 1898.722024096753
5.20
3.3199e-05
9.089e-08
d
yr
n .1896012135695622 3.3152e-09 deg/d
Q 3.348551956772727 3.9033e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      9469 days (25.92 yr)  
   first obs. used      1988-09-01  
   last obs. used      2014-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48918  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:14:27  

Additional Information
 Earth MOID = 1.68257 AU 
 T_jup = 3.214 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO267745  

9317 (1988 RO4)          Discovered 1988-Sep-01 by Debehogne, H. at La Silla (809)
Reference: 19981005/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1988 RO4 = 1993 PZ3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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