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2469 Tadjikistan (1970 HA)
Classification: Main-belt Asteroid          SPK-ID: 2002469
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1390863990171484 1.1509e-08  
a 3.106613338690686 1.6026e-08 au
q 2.674525676273558 3.4083e-08 au
i 9.68885842959598 8.2712e-07 deg
node 151.6144915143639 6.0684e-06 deg
peri 139.1042090031911 1.2839e-05 deg
M 57.6988767558501 1.0113e-05 deg
tp 2459075.951249229339
(2020-Aug-14.45124923)
5.5671e-05 TDB
period 1999.996477673853
5.48
1.5476e-05
4.237e-08
d
yr
n .1800003170099115 1.3929e-09 deg/d
Q 3.538701001107814 1.8255e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2346  
   data-arc span      26239 days (71.84 yr)  
   first obs. used      1949-08-21  
   last obs. used      2021-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45316  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:31:48  

Additional Information
 Earth MOID = 1.66725 au 
 Jupiter MOID = 1.74451 au 
 T_jup = 3.183 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456652.5 (2013-Dec-26.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1374609594368554 1.1451e-08  
q 2.679863480491414 3.4063e-08 au
tp 2457081.180803344417
(2015-Feb-27.68080334)
5.615e-05 TDB
node 151.6992305803143 6.0808e-06 deg
peri 140.2890391011118 1.2996e-05 deg
i 9.676674621349221 8.2586e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2346  
   data-arc span      26239 days (71.84 yr)  
   first obs. used      1949-08-21  
   last obs. used      2021-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45316  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:31:48  

Additional Information
 Jupiter MOID = 1.74451 au 
 T_jup = 3.183 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.311181293146792E-16 -3.603337927840572E-16 1.924427055744661E-14 8.240876801705634E-15 -8.720432351071989E-15 -4.843148864153977E-15
q -3.603337927840572E-16 1.160290851637229E-15 -1.468854509757751E-13 -2.853534642399262E-14 1.055947904946695E-14 1.546418057669401E-14
tp 1.924427055744661E-14 -1.468854509757751E-13 3.152778575084697E-9 3.115933299038546E-11 6.531795156265347E-10 -1.11116796937674E-11
node 8.240876801705634E-15 -2.853534642399262E-14 3.115933299038546E-11 3.697587228969564E-11 -2.817544863123558E-11 -9.835047352016604E-13
peri -8.720432351071989E-15 1.055947904946695E-14 6.531795156265347E-10 -2.817544863123558E-11 1.688959296237495E-10 -1.153867649545762E-12
i -4.843148864153977E-15 1.546418057669401E-14 -1.11116796937674E-11 -9.835047352016604E-13 -1.153867649545762E-12 6.820427386483585E-13

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 12.54   n/a E2021B10  
diameter diameter 12.625 km 0.217 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.069   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2469 Tadjikistan (1970 HA)          Discovered 1970-Apr-27 by Smirnova, T. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1970 HA = 1949 QE = 4290 T-3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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