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16851 (1997 YU1)
Classification: Mars-crossing Asteroid          SPK-ID: 2016851
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .364536427244058 1.5254e-07  
a 2.295210010504007 2.8774e-08 AU
q 1.458522353500079 3.4104e-07 AU
i 20.7877386023074 2.0119e-05 deg
node 292.8196777630288 3.804e-05 deg
peri 91.17655231739244 4.775e-05 deg
M 313.8638927112251 3.0103e-05 deg
tp 2456963.268558961735
(2014-Nov-01.76855896)
0.00010757 JED
period 1270.08290620309
3.48
2.3884e-05
6.539e-08
d
yr
n .2834460634355117 5.3302e-09 deg/d
Q 3.131897667507935 3.9264e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      6837 days (18.72 yr)  
   first obs. used      1993-07-23  
   last obs. used      2012-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57473  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 18:31:17  

Additional Information
 Earth MOID = .6336 AU 
 T_jup = 3.423 
[ 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 15.1 mag n/a MPO229171  

16851 (1997 YU1)          Discovered 1997-Dec-21 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 YU1 = 1993 OK2 = 2000 NY2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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