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100687 (1997 YF4)
Classification: Main-belt Asteroid          SPK-ID: 2100687
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07378033874574419 3.5626e-08  
a 2.66073170901765 1.1516e-08 au
q 2.464422022214785 9.4393e-08 au
i 3.119872837129185 3.9824e-06 deg
node 123.4105385881412 7.8173e-05 deg
peri 299.4239178445716 8.5318e-05 deg
M 130.379046517352 3.2588e-05 deg
tp 2458626.376459064625
(2019-May-22.87645906)		 0.0001434 TDB
period 1585.25836978895
4.34		 1.0292e-05
2.818e-08		 d
yr
n .2270923193724742 1.4743e-09 deg/d
Q 2.857041395820515 1.2366e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1057  
   data-arc span      8174 days (22.38 yr)  
   first obs. used      1997-12-23  
   last obs. used      2020-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55041  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:04:48  

Additional Information
 Earth MOID = 1.47872 au 
 Jupiter MOID = 2.35344 au 
 T_jup = 3.380 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.29   n/a E2021B55  

100687 (1997 YF4)          Discovered 1997-Dec-23 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1997 YF4 = 2001 TM12 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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