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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06202904427897433 3.0152e-08  
a 2.664475771186056 1.0596e-08 au
q 2.499200885594902 8.1952e-08 au
i 2.674944841895071 4.1871e-06 deg
node 301.5090258534522 8.3884e-05 deg
peri 115.9621812874736 9.3216e-05 deg
M 341.4022997637701 3.9996e-05 deg
tp 2458682.567807782823
(2019-Jul-18.06780778)
0.00017656 TDB
period 1588.605603195028
4.35
9.4759e-06
2.594e-08
d
yr
n .2266138299373756 1.3517e-09 deg/d
Q 2.82975065677721 1.1253e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2250  
   data-arc span      15089 days (41.31 yr)  
   first obs. used      1978-07-09  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4984  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:39:21  

Additional Information
 Earth MOID = 1.51216 au 
 Jupiter MOID = 2.37244 au 
 T_jup = 3.380 
[ 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 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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