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JPL Small-Body Database Browser
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19590 (1999 NG18)
Classification: Outer Main-belt Asteroid          SPK-ID: 2019590
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02919697405049886 4.0467e-08  
a 3.24165637713133 2.3311e-08 au
q 3.147009820007593 1.2751e-07 au
i 22.81006638199747 4.9048e-06 deg
node 98.05392667637582 1.0836e-05 deg
peri 260.5428109344792 8.3681e-05 deg
M 142.7546821053929 8.2814e-05 deg
tp 2458155.149619452552
(2018-Feb-05.64961945)
0.00049052 TDB
period 2131.8119483633
5.84
2.2995e-05
6.296e-08
d
yr
n .1688704298127188 1.8215e-09 deg/d
Q 3.336302934255068 2.3991e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1782  
   data-arc span      17199 days (47.09 yr)  
   first obs. used      1973-01-02  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41833  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:51:10  

Additional Information
 Earth MOID = 2.19026 au 
 Jupiter MOID = 1.90944 au 
 T_jup = 3.060 
[ 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 12.2   n/a MPO459002  
diameter diameter 15.953 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19590 (1999 NG18)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NG18 = 1973 AC3 = 1998 KB59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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