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101877 (1999 NA16)
Classification: Main-belt Asteroid          SPK-ID: 2101877
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1634161663028625 4.3988e-08  
a 2.341952458979337 1.268e-08 au
q 1.959239566469372 1.0655e-07 au
i 5.741509493536851 4.6999e-06 deg
node 284.0695669381437 4.579e-05 deg
peri 31.11655821466292 4.7733e-05 deg
M 279.7693016951093 1.4235e-05 deg
tp 2459292.245126766861
(2021-Mar-18.74512677)
5.2398e-05 TDB
period 1309.078044378276
3.58
1.0632e-05
2.911e-08
d
yr
n .2750027025095938 2.2335e-09 deg/d
Q 2.724665351489302 1.4752e-08 au
  Orbit Determination Parameters
   # obs. used (total)      627  
   data-arc span      9616 days (26.33 yr)  
   first obs. used      1994-01-13  
   last obs. used      2020-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5722  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:03  

Additional Information
 Earth MOID = .947844 au 
 Jupiter MOID = 2.54593 au 
 T_jup = 3.539 
[ 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 16.0   n/a MPO426639  
diameter diameter 1.298 km 0.327 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.458   0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101877 (1999 NA16)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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