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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .113971171838549 3.7991e-08  
a 3.063176584022047 1.58e-08 au
q 2.71406275919265 1.1969e-07 au
i 9.902580035391878 4.3503e-06 deg
node 157.5990249069984 2.2616e-05 deg
peri 78.24629626489968 2.9374e-05 deg
M 332.5425730578975 1.7906e-05 deg
tp 2459149.852952699647
(2020-Oct-27.35295270)
9.7393e-05 TDB
period 1958.197433621425
5.36
1.5151e-05
4.148e-08
d
yr
n .1838425450973184 1.4224e-09 deg/d
Q 3.412290408851443 1.7601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1621  
   data-arc span      15774 days (43.19 yr)  
   first obs. used      1977-02-19  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51106  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:43:46  

Additional Information
 Earth MOID = 1.72557 au 
 Jupiter MOID = 1.66302 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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