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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1409669016510204 4.4919e-08  
a 2.740023695830351 2.3783e-08 au
q 2.353771044978768 1.2834e-07 au
i 6.558622792970851 5.0767e-06 deg
node 288.4870943698316 4.7418e-05 deg
peri 339.2579138132733 5.4029e-05 deg
M 235.3195963091539 3.1701e-05 deg
tp 2459574.253838193194
(2021-Dec-25.75383819)
0.00015055 TDB
period 1656.646719413168
4.54
2.1569e-05
5.905e-08
d
yr
n .2173064394366002 2.8293e-09 deg/d
Q 3.126276346681934 2.7136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      440  
   data-arc span      7977 days (21.84 yr)  
   first obs. used      1998-03-04  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:02:47  

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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