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185694 (1997 TF16)
Classification: Main-belt Asteroid          SPK-ID: 2185694
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2077736397724238 4.2281e-08  
a 2.605872719339391 2.0971e-08 au
q 2.064441059658582 1.1739e-07 au
i 4.438218678793949 1.1246e-05 deg
node 171.7914230956535 6.916e-05 deg
peri 278.0425025577707 7.9155e-05 deg
M 70.14884259320286 3.8818e-05 deg
tp 2458701.103833741451
(2019-Aug-05.60383374)
0.00016339 TDB
period 1536.484649905276
4.21
1.8548e-05
5.078e-08
d
yr
n .2343010716196832 2.8284e-09 deg/d
Q 3.1473043790202 2.5329e-08 au
  Orbit Determination Parameters
   # obs. used (total)      271  
   data-arc span      7675 days (21.01 yr)  
   first obs. used      1997-10-07  
   last obs. used      2018-10-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58249  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:15:38  

Additional Information
 Earth MOID = 1.08649 au 
 Jupiter MOID = 2.08326 au 
 T_jup = 3.377 
[ 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 16.6   n/a MPO454278  

185694 (1997 TF16)          Discovered 1997-Oct-07 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 1997 TF16 = 2003 AH42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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