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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1576135635425447 3.7472e-08  
a 2.297862686229372 7.0604e-09 au
q 1.935688359721317 8.6107e-08 au
i 2.55140151523049 3.4896e-06 deg
node 277.5685304316813 8.3114e-05 deg
peri 30.92470631336794 8.3962e-05 deg
M 44.71550994984536 1.0287e-05 deg
tp 2459042.469751353378
(2020-Jul-11.96975135)
3.6524e-05 TDB
period 1272.285378755491
3.48
5.8638e-06
1.605e-08
d
yr
n .2829553856479436 1.3041e-09 deg/d
Q 2.660037012737427 8.1732e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1173  
   data-arc span      7889 days (21.60 yr)  
   first obs. used      1999-07-04  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53309  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:10  

Additional Information
 Earth MOID = .919482 au 
 Jupiter MOID = 2.57575 au 
 T_jup = 3.576 
[ 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 15.87   n/a E2021B55  
rotation period rot_per 11.547 h n/a LCDB (Rev. 2020-October); 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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