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7155 (1979 YN)
Classification: Main-belt Asteroid          SPK-ID: 2007155
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05759034473197499 6.2796e-08  
a 3.013697567133282 3.0831e-08 AU
q 2.840137685324162 1.9247e-07 AU
i 11.38061190119621 7.573e-06 deg
node 120.0720847176582 3.2106e-05 deg
peri 339.8594387368893 7.599e-05 deg
M 239.6384837322317 7.205e-05 deg
tp 2457639.400278660140
(2016-Sep-07.90027866)
0.00038681 JED
period 1910.943858549937
5.23
2.9325e-05
8.029e-08
d
yr
n .188388580014682 2.8909e-09 deg/d
Q 3.187257448942402 3.2607e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      834  
   data-arc span      21697 days (59.40 yr)  
   first obs. used      1955-05-16  
   last obs. used      2014-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53083  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:03:37  

Additional Information
 Earth MOID = 1.85943 AU 
 T_jup = 3.216 
[ 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 12.9 mag n/a MPO302109  

7155 (1979 YN)          Discovered 1979-Dec-23 by Debehogne, H., Netto, E. R. at La Silla (809)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1979 YN = 1991 CQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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