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221996 (1997 YN1)
Classification: Main-belt Asteroid          SPK-ID: 2221996
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2536591153814833 9.8284e-08  
a 2.596911284884701 6.4955e-08 AU
q 1.938181065636656 2.811e-07 AU
i 13.20209178741594 9.4317e-06 deg
node 126.8265029506285 4.762e-05 deg
peri 314.012597997004 8.9529e-05 deg
M 32.04795140095688 8.7336e-05 deg
tp 2456864.423894934337
(2014-Jul-25.92389493)
0.00036591 JED
period 1528.565654969639
4.18
5.735e-05
1.57e-07
d
yr
n .2355149082602869 8.8362e-09 deg/d
Q 3.255641504132745 8.1431e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      5829 days (15.96 yr)  
   first obs. used      1997-12-19  
   last obs. used      2013-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59149  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 22:29:56  

Additional Information
 Earth MOID = .977766 AU 
 T_jup = 3.334 
[ 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 15.8 mag n/a MPO270878  

221996 (1997 YN1)          Discovered 1997-Dec-19 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20091102/Numbers.arcLast Updated: 2009-11-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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