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101879 (1999 NP26)
Classification: Main-belt Asteroid          SPK-ID: 2101879
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1578898530871645 3.7731e-08  
a 2.29867290463784 7.1065e-09 au
q 1.935735777429125 8.6784e-08 au
i 2.551579363683019 3.5636e-06 deg
node 277.5735461397647 8.3319e-05 deg
peri 30.98137383796146 8.4187e-05 deg
M 348.0845739646268 1.0446e-05 deg
tp 2459042.632891623034
(2020-Jul-12.13289162)
3.689e-05 TDB
period 1272.958343181661
3.49
5.9031e-06
1.616e-08
d
yr
n .2828057979495289 1.3115e-09 deg/d
Q 2.661610031846553 8.2285e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1139  
   data-arc span      7789 days (21.33 yr)  
   first obs. used      1999-07-04  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5386  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:02  

Additional Information
 Earth MOID = .921532 au 
 Jupiter MOID = 2.57524 au 
 T_jup = 3.575 
[ 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 15.7   n/a MPO436476  
rotation period rot_per 11.547 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

101879 (1999 NP26)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 NP26 = 2002 JU40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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