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70141 (1999 NE18)
Classification: Main-belt Asteroid          SPK-ID: 2070141
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1671245290564921 3.972e-08  
a 2.393914201410298 1.3336e-08 au
q 1.993832417897954 9.6963e-08 au
i 13.80472379142094 4.756e-06 deg
node 91.4086095357176 1.7952e-05 deg
peri 156.5476597867663 2.2492e-05 deg
M 260.5785693133065 1.6333e-05 deg
tp 2459374.127476060565
(2021-Jun-08.62747606)
6.3122e-05 TDB
period 1352.886298786743
3.70
1.1305e-05
3.095e-08
d
yr
n .2660977499164897 2.2235e-09 deg/d
Q 2.793995984922642 1.5565e-08 au
  Orbit Determination Parameters
   # obs. used (total)      781  
   data-arc span      7536 days (20.63 yr)  
   first obs. used      1999-06-15  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:04:38  

Additional Information
 Earth MOID = .985904 au 
 Jupiter MOID = 2.27746 au 
 T_jup = 3.472 
[ 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 15.5   n/a MPO359233  
diameter diameter 4.454 km 0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70141 (1999 NE18)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 NE18 = 2000 WV164 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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