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187977 (2001 QX205)
Classification: Main-belt Asteroid          SPK-ID: 2187977
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1544508847854416 4.1172e-08  
a 2.33762561261346 1.0883e-08 au
q 1.976577268448201 9.5501e-08 au
i 1.802648389213826 4.7158e-06 deg
node 295.3368606661784 0.00019155 deg
peri 348.3946235905358 0.00019272 deg
M 185.521514187477 2.1693e-05 deg
tp 2459833.203512213847
(2022-Sep-10.70351221)
8.025e-05 TDB
period 1305.451863227007
3.57
9.1167e-06
2.496e-08
d
yr
n .2757665833116966 1.9258e-09 deg/d
Q 2.698673956778718 1.2564e-08 au
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      9633 days (26.37 yr)  
   first obs. used      1994-09-27  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58974  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:35  

Additional Information
 Earth MOID = .958248 au 
 Jupiter MOID = 2.43868 au 
 T_jup = 3.550 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457652.5 (2016-Sep-21.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1547980606680752 4.1096e-08  
q 1.975338482610015 9.535e-08 au
tp 2457223.418672958281
(2015-Jul-19.91867296)
7.5167e-05 TDB
node 295.388917816718 0.0001917 deg
peri 348.4785746549239 0.00019287 deg
i 1.801862572796078 4.7157e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      9633 days (26.37 yr)  
   first obs. used      1994-09-27  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58974  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:35  

Additional Information
 Jupiter MOID = 2.43868 au 
 T_jup = 3.550 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.688891412664374E-15 -3.900568612348122E-15 9.684906950724607E-13 -3.290237796705322E-14 2.476168562719273E-13 -9.317861303963397E-16
q -3.900568612348122E-15 9.091541455259568E-15 -2.156564053021858E-12 7.418397925206182E-14 -5.414742427076669E-13 2.133961616197626E-15
tp 9.684906950724607E-13 -2.156564053021858E-12 5.650012483337053E-9 -4.188968847121669E-11 1.636765872227597E-9 -3.365890375080178E-12
node -3.290237796705322E-14 7.418397925206182E-14 -4.188968847121669E-11 3.675052460636977E-8 -3.674304365118463E-8 3.420997262395258E-10
peri 2.476168562719273E-13 -5.414742427076669E-13 1.636765872227597E-9 -3.674304365118463E-8 3.720065943569023E-8 -3.428808894451658E-10
i -9.317861303963397E-16 2.133961616197626E-15 -3.365890375080178E-12 3.420997262395258E-10 -3.428808894451658E-10 2.22374308676249E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.41   n/a MPCxxxxx  

187977 (2001 QX205)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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