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JPL Small-Body Database Browser
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15986 Fienga (1998 XU1)
Classification: Main-belt Asteroid          SPK-ID: 2015986
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2285975457515279 3.9622e-08  
a 2.695077116168518 1.2837e-08 au
q 2.07898910180129 1.0627e-07 au
i 2.650090631062578 4.9005e-06 deg
node 207.148454775039 9.3086e-05 deg
peri 284.8958552040191 9.3642e-05 deg
M 170.4004627065159 1.1866e-05 deg
tp 2457835.566835667777
(2017-Mar-23.06683567)
5.0164e-05 TDB
period 1616.051592734731
4.42
1.1546e-05
3.161e-08
d
yr
n .2227651651831221 1.5916e-09 deg/d
Q 3.311165130535747 1.5771e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1009  
   data-arc span      9543 days (26.13 yr)  
   first obs. used      1993-09-15  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52724  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:00:28  

Additional Information
 Earth MOID = 1.09576 au 
 Jupiter MOID = 1.75962 au 
 T_jup = 3.330 
[ 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 14.7   n/a MPO347650  
diameter diameter 7.268 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15986 Fienga           Discovered 1998 Dec. 7 by the OCA-DLR Asteroid Survey at Caussols.
Agnes Fienga (b. 1973) works at the Institut de Mécanique Céleste in Paris on the global adjustment of analytical theories of planetary motion to observations. She also worked on space navigation at CNES and JPL.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1998 XU1 = 1993 RR19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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