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17188 (1999 WC2)
Classification: Apollo [NEO]          SPK-ID: 2017188
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 93 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6367140649058279 4.348e-08  
a 2.215959844109412 1.3288e-08 au
q .8050270440984234 9.5041e-08 au
i 29.44823684630115 1.0213e-05 deg
node 269.7998299329423 1.2428e-05 deg
peri 287.2633580176754 1.3502e-05 deg
M 113.9005857644827 7.5991e-06 deg
tp 2458819.289624054558
(2019-Dec-01.78962405)
2.2058e-05 TDB
period 1204.872954947989
3.30
1.0837e-05
2.967e-08
d
yr
n .2987866882741511 2.6875e-09 deg/d
Q 3.6268926441204 2.1748e-08 au
  Orbit Determination Parameters
   # obs. used (total)      334  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      11036 days (30.21 yr)  
   first obs. used      1990-07-27  
   last obs. used      2020-10-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44709  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:56:48  

Additional Information
 Earth MOID = .0626303 au 
 Jupiter MOID = 2.39737 au 
 T_jup = 3.225 
[ 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 16.37   n/a E2021B10  
diameter diameter 1.819 km 0.227 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 5.0638 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Vaduvescu, O.; Aznar, A.M.; Tudor, V.; Predatu, M.; et al. (2017) Earth, Moon, and Planets 120, 41-100.]
geometric albedo albedo 0.147   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

17188 (1999 WC2)          Discovered 1999-Nov-17 by LINEAR at Socorro
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

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