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172760 (2004 DQ23)
Classification: Main-belt Asteroid          SPK-ID: 2172760
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06884414267400925 3.8898e-08  
a 3.017518568922791 2.5549e-08 au
q 2.809780090042398 1.2166e-07 au
i 10.9876804589608 4.9046e-06 deg
node 148.044115751711 2.7124e-05 deg
peri 343.1424816120721 5.0546e-05 deg
M 79.51628336699002 4.3567e-05 deg
tp 2458577.610476965056
(2019-Apr-04.11047697)
0.00022978 TDB
period 1914.579276674041
5.24
2.4316e-05
6.657e-08
d
yr
n .1880308663036315 2.388e-09 deg/d
Q 3.225257047803184 2.7308e-08 au
  Orbit Determination Parameters
   # obs. used (total)      543  
   data-arc span      7709 days (21.11 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58814  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:21:03  

Additional Information
 Earth MOID = 1.82553 au 
 Jupiter MOID = 1.7967 au 
 T_jup = 3.216 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457024.5 (2015-Jan-02.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07030380376192996 3.8837e-08  
q 2.80512050995789 1.2172e-07 au
tp 2456661.113110569490
(2014-Jan-03.61311057)
0.00021787 TDB
node 148.0642912403752 2.7128e-05 deg
peri 342.9365334913247 4.983e-05 deg
i 10.98763069372876 4.9046e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      543  
   data-arc span      7709 days (21.11 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58814  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:21:03  

Additional Information
 Jupiter MOID = 1.7967 au 
 T_jup = 3.216 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.508347589937089E-15 -4.636800706087059E-15 1.824187098473181E-12 -2.087014834537331E-15 3.465719600747668E-13 -2.494442824816529E-16
q -4.636800706087059E-15 1.481576147288762E-14 -4.21503273400382E-12 8.179553864655405E-15 -7.822847532418184E-13 1.304864305529681E-15
tp 1.824187098473181E-12 -4.21503273400382E-12 4.746728804680171E-8 -4.734758884399999E-11 9.147070551633324E-9 -7.970064886361155E-12
node -2.087014834537331E-15 8.179553864655405E-15 -4.734758884399999E-11 7.359221473828013E-10 -7.310144963808053E-10 4.338251409449557E-11
peri 3.465719600747668E-13 -7.822847532418184E-13 9.147070551633324E-9 -7.310144963808053E-10 2.483035692314261E-9 -4.408090027727578E-11
i -2.494442824816529E-16 1.304864305529681E-15 -7.970064886361155E-12 4.338251409449557E-11 -4.408090027727578E-11 2.405523777184026E-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 15.1   n/a MPO251404  

172760 (2004 DQ23)          Discovered 2004-Feb-18 by CSS at Catalina
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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