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187976 (2001 QK169)
Classification: Main-belt Asteroid          SPK-ID: 2187976
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1258185647005495 1.0263e-07  
a 2.550370057215093 2.9254e-08 au
q 2.229486157161032 2.4718e-07 au
i 4.89645560794728 6.8909e-06 deg
node 39.68457923077582 7.5283e-05 deg
peri 319.2699282282928 8.104e-05 deg
M 237.3648886993488 4.2423e-05 deg
tp 2459707.275437213729
(2022-May-07.77543721)
0.00018078 TDB
period 1487.658432091901
4.07
2.5597e-05
7.008e-08
d
yr
n .2419910325072259 4.1637e-09 deg/d
Q 2.871253957269154 3.2935e-08 au
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      6819 days (18.67 yr)  
   first obs. used      2001-08-14  
   last obs. used      2020-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54415  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:35  

Additional Information
 Earth MOID = 1.22731 au 
 Jupiter MOID = 2.57743 au 
 T_jup = 3.424 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457113.5 (2015-Apr-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1242892179168629 1.0173e-07  
q 2.234523500459414 2.4421e-07 au
tp 2456726.693863387876
(2014-Mar-10.19386339)
0.00015502 TDB
node 39.78562278681353 7.5414e-05 deg
peri 318.4369330789311 8.1365e-05 deg
i 4.892117173449424 6.8808e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      6819 days (18.67 yr)  
   first obs. used      2001-08-14  
   last obs. used      2020-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54415  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:35  

Additional Information
 Jupiter MOID = 2.57743 au 
 T_jup = 3.424 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.034898787393854E-14 -2.47555350015715E-14 9.43492738220238E-12 2.383117374481261E-13 1.610756274290334E-12 1.071174627732684E-15
q -2.47555350015715E-14 5.963870984023035E-14 -2.22911719880904E-11 -5.667819044096492E-13 -3.773466201156208E-12 -2.359205956799302E-15
tp 9.43492738220238E-12 -2.22911719880904E-11 2.403069384091969E-8 3.104337563210055E-10 4.778611917421722E-9 -3.101188424743944E-12
node 2.383117374481261E-13 -5.667819044096492E-13 3.104337563210055E-10 5.687199222330027E-9 -5.602072599446369E-9 -1.303510571024104E-10
peri 1.610756274290334E-12 -3.773466201156208E-12 4.778611917421722E-9 -5.602072599446369E-9 6.620268126464323E-9 1.291044589124426E-10
i 1.071174627732684E-15 -2.359205956799302E-15 -3.101188424743944E-12 -1.303510571024104E-10 1.291044589124426E-10 4.734552845979141E-11

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 16.48   n/a E2021B55  

187976 (2001 QK169)          Discovered 2001-Aug-26 by NEAT at Haleakala
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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