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58183 (1991 PH9)
Classification: Main-belt Asteroid          SPK-ID: 2058183
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2760926118302961 5.6862e-08  
a 2.663567806235248 1.4718e-08 au
q 1.928176413824667 1.528e-07 au
i 13.11680092260292 6.9366e-06 deg
node 326.2349844157999 1.8687e-05 deg
peri 39.19022146737734 2.0986e-05 deg
M 193.2243025027572 1.1424e-05 deg
tp 2459736.070540282227
(2022-Jun-05.57054028)
5.4749e-05 TDB
period 1587.793656242868
4.35
1.3161e-05
3.603e-08
d
yr
n .2267297130106021 1.8793e-09 deg/d
Q 3.39895919864583 1.8782e-08 au
  Orbit Determination Parameters
   # obs. used (total)      889  
   data-arc span      11910 days (32.61 yr)  
   first obs. used      1987-10-02  
   last obs. used      2020-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53358  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:52:01  

Additional Information
 Earth MOID = .942764 au 
 Jupiter MOID = 2.14129 au 
 T_jup = 3.293 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO341076  

58183 (1991 PH9)          Discovered 1991-Aug-15 by Helin, E. F. at Palomar
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 PH9 = 2000 RT104 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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