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469685 (2004 XQ170)
Classification: Main-belt Asteroid          SPK-ID: 2469685
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2873832647041257 7.3355e-08  
a 2.648181493823873 3.4032e-08 au
q 1.88713845059972 1.8023e-07 au
i 10.86328304720447 1.4436e-05 deg
node 290.3340582902424 4.1096e-05 deg
peri 124.7494465900554 5.7916e-05 deg
M 239.230297984289 3.7293e-05 deg
tp 2459528.550599784173
(2021-Nov-10.05059978)
0.00017109 TDB
period 1574.055518474098
4.31
3.0342e-05
8.307e-08
d
yr
n .2287085784299317 4.4087e-09 deg/d
Q 3.409224537048026 4.3812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      5280 days (14.46 yr)  
   first obs. used      2004-12-09  
   last obs. used      2019-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54166  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:02:38  

Additional Information
 Earth MOID = .923081 au 
 Jupiter MOID = 2.04463 au 
 T_jup = 3.307 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457334.5 (2015-Nov-08.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2900896041736158 7.4407e-08  
q 1.876467402495588 1.8403e-07 au
tp 2457956.634851324000
(2017-Jul-22.13485132)
0.00014631 TDB
node 290.3917225566034 4.1186e-05 deg
peri 124.7698340082546 5.7589e-05 deg
i 10.85994326261682 1.4428e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      5280 days (14.46 yr)  
   first obs. used      2004-12-09  
   last obs. used      2019-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54166  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:02:38  

Additional Information
 Jupiter MOID = 2.04463 au 
 T_jup = 3.307 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.536446326851031E-15 -1.362636669817641E-14 6.678021034790465E-12 -7.88257915093267E-14 1.700493589621389E-12 -1.157106296081556E-14
q -1.362636669817641E-14 3.386721725544805E-14 -1.547578774155462E-11 1.855942023038125E-13 -3.966756426455955E-12 3.158706293393649E-14
tp 6.678021034790465E-12 -1.547578774155462E-11 2.140691892606295E-8 -2.539869623127391E-10 5.909071038531284E-9 -2.454925990238554E-12
node -7.88257915093267E-14 1.855942023038125E-13 -2.539869623127391E-10 1.696258947427916E-9 -1.729249032432384E-9 2.406818853307447E-10
peri 1.700493589621389E-12 -3.966756426455955E-12 5.909071038531284E-9 -1.729249032432384E-9 3.316499885224602E-9 -2.360094121512725E-10
i -1.157106296081556E-14 3.158706293393649E-14 -2.454925990238554E-12 2.406818853307447E-10 -2.360094121512725E-10 2.081596428911804E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO241872  

469685 (2004 XQ170)          Discovered 2004-Dec-09 by CSS at Catalina
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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