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JPL Small-Body Database Browser
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172419 (2003 GD21)
Classification: Mars-crossing Asteroid          SPK-ID: 2172419
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1275230939047241 6.843e-08  
a 1.899752561438151 1.0204e-08 au
q 1.657490237150133 1.3047e-07 au
i 23.0173095864214 7.5159e-06 deg
node 42.6423921328736 1.5533e-05 deg
peri 101.5774208468623 3.4685e-05 deg
M 231.9781518870944 2.7364e-05 deg
tp 2459340.614836035800
(2021-May-06.11483604)
7.2845e-05 TDB
period 956.4097283215593
2.62
7.7055e-06
2.11e-08
d
yr
n .3764077145385984 3.0326e-09 deg/d
Q 2.142014885726168 1.1505e-08 au
  Orbit Determination Parameters
   # obs. used (total)      416  
   data-arc span      7125 days (19.51 yr)  
   first obs. used      1999-11-02  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54856  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:41:24  

Additional Information
 Earth MOID = .766642 au 
 Jupiter MOID = 2.96517 au 
 T_jup = 3.842 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456911.5 (2014-Sep-11.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271540677616982 6.8422e-08  
q 1.658495800969798 1.3044e-07 au
tp 2456470.747057820169
(2013-Jun-27.24705782)
7.5086e-05 TDB
node 42.67608408187618 1.5532e-05 deg
peri 101.5117074435296 3.4795e-05 deg
i 23.01799148528194 7.5157e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      416  
   data-arc span      7125 days (19.51 yr)  
   first obs. used      1999-11-02  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54856  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:41:24  

Additional Information
 Jupiter MOID = 2.96517 au 
 T_jup = 3.842 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.68163629213071E-15 -8.903838266221943E-15 2.884235004032449E-12 6.363049101627517E-14 1.241158492491249E-12 -1.010625643010076E-13
q -8.903838266221943E-15 1.701332899505988E-14 -5.637763416434834E-12 -1.201976092994981E-13 -2.416349253095999E-12 1.929705573195726E-13
tp 2.884235004032449E-12 -5.637763416434834E-12 5.637950884874295E-9 4.644973299339589E-11 2.361469306501207E-9 -6.320445634228382E-11
node 6.363049101627517E-14 -1.201976092994981E-13 4.644973299339589E-11 2.412348570748888E-10 -2.008649046688517E-10 -5.50476795981224E-11
peri 1.241158492491249E-12 -2.416349253095999E-12 2.361469306501207E-9 -2.008649046688517E-10 1.210699962766981E-9 2.215294816302327E-11
i -1.010625643010076E-13 1.929705573195726E-13 -6.320445634228382E-11 -5.50476795981224E-11 2.215294816302327E-11 5.648557901286967E-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 16.8   n/a MPO382140  

172419 (2003 GD21)          Discovered 2003-Apr-04 by Uccle at Uccle
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 2003 GD21 = 1999 VG14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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