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16668 (1993 XN1)
Classification: Main-belt Asteroid          SPK-ID: 2016668
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1475571970263093 2.6866e-08  
a 2.58793290057223 1.1224e-08 au
q 2.206064775671625 7.2259e-08 au
i 16.42442439664368 1.1111e-06 deg
node 94.84563814632696 3.0617e-06 deg
peri 183.230687106581 5.1493e-06 deg
M .7995407482546137 7.6229e-06 deg
tp 2459197.122727947706
(2020-Dec-13.62272795)
3.2192e-05 TDB
period 1520.645372333952
4.16
9.8925e-06
2.708e-08
d
yr
n .2367415878479651 1.5401e-09 deg/d
Q 2.969801025472834 1.288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2099  
   data-arc span      10677 days (29.23 yr)  
   first obs. used      1991-06-14  
   last obs. used      2020-09-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43834  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:38:08  

Additional Information
 Earth MOID = 1.18794 au 
 Jupiter MOID = 2.16602 au 
 T_jup = 3.349 
[ 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 13.47   n/a E2021B10  
diameter diameter 6.153 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.323   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16668 (1993 XN1)          Discovered 1993-Dec-15 by Kobayashi, T. at Oizumi
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 XN1 = 1991 LK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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