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17957 (1999 JE29)
Classification: Main-belt Asteroid          SPK-ID: 2017957
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2133590216205942 4.5759e-08  
a 2.234640315683795 7.7391e-09 au
q 1.757859644255565 1.0409e-07 au
i 4.477073178414068 4.3414e-06 deg
node 318.7546536578896 4.2703e-05 deg
peri 40.35322647479742 4.3322e-05 deg
M 357.3898823596855 9.23e-06 deg
tp 2459009.346417923063
(2020-Jun-08.84641792)
3.1316e-05 TDB
period 1220.140580299354
3.34
6.3385e-06
1.735e-08
d
yr
n .2950479689083664 1.5327e-09 deg/d
Q 2.711420987112025 9.3903e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1628  
   data-arc span      16690 days (45.69 yr)  
   first obs. used      1973-10-27  
   last obs. used      2019-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49749  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:15:59  

Additional Information
 Earth MOID = .756809 au 
 Jupiter MOID = 2.74736 au 
 T_jup = 3.605 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO270269  
diameter diameter 3.186 km 0.821 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.303   0.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

17957 (1999 JE29)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JE29 = 1973 UX2 = 1993 RV20 = 1997 XW8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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