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17869 Descamps (1998 MA14)
Classification: Main-belt Asteroid          SPK-ID: 2017869
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0882917112967635 3.9014e-08  
a 2.39833966450423 9.0072e-09 au
q 2.186586151254246 9.1754e-08 au
i 6.957842614287593 3.7134e-06 deg
node 150.3656542218559 3.121e-05 deg
peri 33.85363449204203 3.6502e-05 deg
M 61.25889097774127 1.9198e-05 deg
tp 2458769.649355562561
(2019-Oct-13.14935556)
7.2021e-05 TDB
period 1356.639512583977
3.71
7.6425e-06
2.092e-08
d
yr
n .2653615766463353 1.4949e-09 deg/d
Q 2.610093177754215 9.8024e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1396  
   data-arc span      10510 days (28.77 yr)  
   first obs. used      1991-09-08  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53377  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:16:28  

Additional Information
 Earth MOID = 1.19328 au 
 Jupiter MOID = 2.35268 au 
 T_jup = 3.512 
[ 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 15.1   n/a MPO365467  
diameter diameter 2.648 km 0.728 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.934 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.174   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17869 Descamps           Discovered 1998 June 20 by the OCA-DLR Asteroid Survey at Caussols.
Pascal Descamps (b. 1961) works at the Institut de Mécanique Céleste in Paris on the modeling the Galilean satellites of Jupiter, with particular application to observations of their mutual phenomena. He has also studied the volcanoes on the satellite Io and has worked on the Uranian system using adaptive optics.
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 MA14 = 1997 ET38 = 1999 VD225 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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