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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140097720083401 3.7802e-08  
a 3.063238244469086 1.5436e-08 au
q 2.713999150609938 1.1922e-07 au
i 9.902645036829458 4.2758e-06 deg
node 157.5979856789529 2.2364e-05 deg
peri 78.31315883993996 2.9125e-05 deg
M 9.258586331881046 1.7701e-05 deg
tp 2459150.136979375379
(2020-Oct-27.63697938)
9.6299e-05 TDB
period 1958.256560446208
5.36
1.4802e-05
4.053e-08
d
yr
n .1838369942281569 1.3896e-09 deg/d
Q 3.412477338328235 1.7196e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1738  
   data-arc span      15879 days (43.47 yr)  
   first obs. used      1977-02-19  
   last obs. used      2020-08-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5005  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:19:22  

Additional Information
 Earth MOID = 1.72422 au 
 Jupiter MOID = 1.66198 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 13.43   n/a E2021B10  
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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