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379172 (2009 QY57)
Classification: Main-belt Asteroid          SPK-ID: 2379172
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2121719179189961 5.189e-08  
a 2.441255713016207 3.9766e-08 au
q 1.923289806254852 1.3331e-07 au
i 8.796185138989404 9.9623e-06 deg
node 353.1680938073618 6.1813e-05 deg
peri 321.7107304941521 6.9562e-05 deg
M 317.3355566173234 3.7254e-05 deg
tp 2459165.613247404332
(2020-Nov-12.11324740)
0.00014635 TDB
period 1393.215622958174
3.81
3.4042e-05
9.32e-08
d
yr
n .2583950352463192 6.3136e-09 deg/d
Q 2.959221619777562 4.8203e-08 au
  Orbit Determination Parameters
   # obs. used (total)      96  
   data-arc span      5024 days (13.75 yr)  
   first obs. used      2004-02-26  
   last obs. used      2017-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63986  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-07 18:36:48  

Additional Information
 Earth MOID = .918984 au 
 Jupiter MOID = 2.37962 au 
 T_jup = 3.454 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457069.5 (2015-Feb-16.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2110873861981882 5.1745e-08  
q 1.92757388191716 1.3293e-07 au
tp 2456376.712688756002
(2013-Mar-25.21268876)
0.00012307 TDB
node 353.2097991454935 6.1878e-05 deg
peri 321.3996020453087 6.9651e-05 deg
i 8.789701925084664 9.9433e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      96  
   data-arc span      5024 days (13.75 yr)  
   first obs. used      2004-02-26  
   last obs. used      2017-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63986  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-07 18:36:48  

Additional Information
 Jupiter MOID = 2.37962 au 
 T_jup = 3.454 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.677548109255751E-15 -6.678139880724068E-15 1.243433993024722E-12 1.570206356389384E-14 2.952094105096512E-13 7.01428807748512E-15
q -6.678139880724068E-15 1.766946549917332E-14 -2.58431172606334E-12 -3.415913797652205E-14 -4.733977128639836E-13 -1.350979526775586E-14
tp 1.243433993024722E-12 -2.58431172606334E-12 1.514501055760517E-8 -8.075994453728936E-12 4.017517660357791E-9 1.459931422951221E-11
node 1.570206356389384E-14 -3.415913797652205E-14 -8.075994453728936E-12 3.828912294711963E-9 -3.785609849544901E-9 3.800590673999506E-10
peri 2.952094105096512E-13 -4.733977128639836E-13 4.017517660357791E-9 -3.785609849544901E-9 4.851290441669329E-9 -3.714076090594197E-10
i 7.01428807748512E-15 -1.350979526775586E-14 1.459931422951221E-11 3.800590673999506E-10 -3.714076090594197E-10 9.886901272493767E-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 17.2   n/a MPO434345  

379172 (2009 QY57)          Discovered 2009-Aug-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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