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17998 (1999 JN80)
Classification: Main-belt Asteroid          SPK-ID: 2017998
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140467365920339 4.1833e-08  
a 3.064375647623423 1.9311e-08 au
q 2.714893605319871 1.2756e-07 au
i 9.900741023535952 4.4653e-06 deg
node 157.5998277972624 2.6334e-05 deg
peri 78.04677603752411 3.231e-05 deg
M 259.220087138924 1.9029e-05 deg
tp 2459149.007926774404
(2020-Oct-26.50792677)
0.00010453 TDB
period 1959.347334532685
5.36
1.8521e-05
5.071e-08
d
yr
n .183734651664434 1.7367e-09 deg/d
Q 3.413857689926974 2.1513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1379  
   data-arc span      15619 days (42.76 yr)  
   first obs. used      1977-02-19  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52784  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 23:47:30  

Additional Information
 Earth MOID = 1.72637 au 
 Jupiter MOID = 1.66177 au 
 T_jup = 3.200 
[ 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 13.4   n/a MPO384909  
diameter diameter 7.448 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.167   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17998 (1999 JN80)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JN80 = 1977 DO10 = 2000 QB46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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