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91409 (1999 NP15)
Classification: Main-belt Asteroid          SPK-ID: 2091409
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1409669016040288 4.4918e-08  
a 2.740023695458041 2.3707e-08 au
q 2.3537710447877 1.2833e-07 au
i 6.558622793084321 5.0742e-06 deg
node 288.4870941040696 4.6823e-05 deg
peri 339.257914520166 5.3467e-05 deg
M 235.31959602215 3.1667e-05 deg
tp 2459574.253839396986
(2021-Dec-25.75383940)
0.00015042 TDB
period 1656.646719075515
4.54
2.15e-05
5.886e-08
d
yr
n .217306439480891 2.8202e-09 deg/d
Q 3.126276346128383 2.7048e-08 au
  Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      7996 days (21.89 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60549  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:29:31  

Additional Information
 Earth MOID = 1.33903 au 
 Jupiter MOID = 1.98569 au 
 T_jup = 3.326 
[ 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 15.5   n/a MPO453353  
diameter diameter 3.584 km 0.908 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.104   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91409 (1999 NP15)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 NP15 = 2002 AY143 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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