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4785 Petrov (1984 YH1)
Classification: Main-belt Asteroid          SPK-ID: 2004785
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06219170053165201 2.918e-08  
a 2.664628347790212 1.0059e-08 au
q 2.498910579556292 7.8513e-08 au
i 2.675219782586602 4.0791e-06 deg
node 301.504556327375 7.834e-05 deg
peri 115.7848133312913 8.7566e-05 deg
M 72.1982338759486 3.8014e-05 deg
tp 2458681.876748076354
(2019-Jul-17.37674808)
0.00016768 TDB
period 1588.742058283563
4.35
8.9959e-06
2.463e-08
d
yr
n .2265943663560685 1.283e-09 deg/d
Q 2.830346116024131 1.0684e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2450  
   data-arc span      15267 days (41.80 yr)  
   first obs. used      1978-07-09  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48263  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:12:32  

Additional Information
 Earth MOID = 1.51225 au 
 Jupiter MOID = 2.37137 au 
 T_jup = 3.380 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5   n/a MPO358676  

4785 Petrov (1984 YH1)          Discovered 1984-Dec-17 by Karachkina, L. G. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 YH1 = 1978 NC1 = 1979 SE5 = 1981 AN2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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