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17355 (1978 NK)
Classification: Main-belt Asteroid          SPK-ID: 2017355
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2347295565947666 5.7723e-08  
a 2.665560081951939 1.4706e-08 au
q 2.03987434583865 1.5571e-07 au
i 3.111520178391655 4.5171e-06 deg
node 255.8967895136935 0.00011751 deg
peri 103.2277236656558 0.0001179 deg
M 93.97288054745609 1.1707e-05 deg
tp 2458185.563939261553
(2018-Mar-08.06393926)
4.9762e-05 TDB
period 1589.575428523829
4.35
1.3154e-05
3.601e-08
d
yr
n .2264755692243662 1.8742e-09 deg/d
Q 3.291245818065227 1.8157e-08 au
  Orbit Determination Parameters
   # obs. used (total)      761  
   data-arc span      14841 days (40.63 yr)  
   first obs. used      1978-07-10  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53806  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:18:24  

Additional Information
 Earth MOID = 1.03831 au 
 Jupiter MOID = 2.18034 au 
 T_jup = 3.341 
[ 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 MPO452416  
diameter diameter 5.482 km 0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17355 (1978 NK)          Discovered 1978-Jul-10 by Helin, E. F., Shoemaker, E. M. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1978 NK = 1987 SB30 = 1991 NC7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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