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9046 (1991 PG17)
Classification: Main-belt Asteroid          SPK-ID: 2009046
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 .1788272824090744 7.63e-08  
a 2.33289677863426 2.4404e-08 AU
q 1.915711187570212 1.8219e-07 AU
i 12.13110773383474 7.8964e-06 deg
node 307.8382521137279 3.8613e-05 deg
peri 311.2952407137894 5.4062e-05 deg
M 247.0549132117533 5.2154e-05 deg
tp 2457408.825549050258
(2016-Jan-21.32554905)
0.00019331 JED
period 1301.492626533531
3.56
2.0422e-05
5.591e-08
d
yr
n .2766054856252581 4.3403e-09 deg/d
Q 2.750082369698309 2.8768e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      825  
   data-arc span      8542 days (23.39 yr)  
   first obs. used      1991-08-09  
   last obs. used      2014-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50486  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:28:22  

Additional Information
 Earth MOID = .923983 AU 
 T_jup = 3.519 
[ 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 13.5 mag n/a MPO286849  

9046 (1991 PG17)          Discovered 1991-Aug-09 by Holt, H. E. at Palomar (675)
Reference: 19980808/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PG17 = 1994 FW 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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