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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06229271696472063 1.3081e-08  
a 2.664207763921863 9.315e-09 au
q 2.498247023748667 3.3463e-08 au
i 2.675171874681342 5.8723e-07 deg
node 301.5036962505438 7.5979e-06 deg
peri 115.64303583878 2.2892e-05 deg
M 117.6562146736255 2.1707e-05 deg
tp 2458681.385772007657
(2019-Jul-16.88577201)
9.5593e-05 TDB
period 1588.365923514075
4.35
8.3302e-06
2.281e-08
d
yr
n .2266480252884938 1.1887e-09 deg/d
Q 2.830168504095059 9.8953e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2606  
   data-arc span      15597 days (42.70 yr)  
   first obs. used      1978-07-09  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4865  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:50:57  

Additional Information
 Earth MOID = 1.51079 au 
 Jupiter MOID = 2.37168 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 13.53   n/a E2021B10  

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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