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101876 (1999 NJ15)
Classification: Main-belt Asteroid          SPK-ID: 2101876
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1469682284804457 4.4593e-08  
a 2.568552223016668 1.3948e-08 au
q 2.191056653040397 1.1766e-07 au
i 5.53068103377005 3.0947e-06 deg
node 105.8589782513168 5.7957e-05 deg
peri 228.5008557619032 6.054e-05 deg
M 352.626391951564 1.6683e-05 deg
tp 2459031.297011469042
(2020-Jun-30.79701147)
6.9579e-05 TDB
period 1503.595533696272
4.12
1.2247e-05
3.353e-08
d
yr
n .2394260902830803 1.9502e-09 deg/d
Q 2.946047792992938 1.5998e-08 au
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      7808 days (21.38 yr)  
   first obs. used      1999-06-25  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:28:52  

Additional Information
 Earth MOID = 1.18535 au 
 Jupiter MOID = 2.40792 au 
 T_jup = 3.409 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457897.5 (2017-May-24.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .147641777587219 4.4731e-08  
q 2.188878311622473 1.1832e-07 au
tp 2457529.866929689155
(2016-May-21.36692969)
7.5115e-05 TDB
node 105.8733704289026 5.8007e-05 deg
peri 228.9494659731438 6.0559e-05 deg
i 5.529037872921352 3.0932e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      7808 days (21.38 yr)  
   first obs. used      1999-06-25  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:28:52  

Additional Information
 Jupiter MOID = 2.40792 au 
 T_jup = 3.409 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.000825094681347E-15 -5.266972541554081E-15 1.97206376205624E-12 4.250487672932798E-14 4.338894720084474E-13 -5.797253855918433E-15
q -5.266972541554081E-15 1.400045449888289E-14 -5.567631228701125E-12 -1.127778518825373E-13 -1.228082363087723E-12 1.575575756130942E-14
tp 1.97206376205624E-12 -5.567631228701125E-12 5.642287501771282E-9 6.810836366264761E-11 1.354278019461347E-9 -8.987051188335663E-12
node 4.250487672932798E-14 -1.127778518825373E-13 6.810836366264761E-11 3.364818299069219E-9 -3.332294129516588E-9 1.361850557950463E-11
peri 4.338894720084474E-13 -1.228082363087723E-12 1.354278019461347E-9 -3.332294129516588E-9 3.667371031118592E-9 -1.575129876237588E-11
i -5.797253855918433E-15 1.575575756130942E-14 -8.987051188335663E-12 1.361850557950463E-11 -1.575129876237588E-11 9.567772488204242E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO244927  

101876 (1999 NJ15)          Discovered 1999-Jul-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 NJ15 = 2000 YL71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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