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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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1390863990036272 1.1508e-08  
a 3.106613338843624 1.597e-08 au
q 2.674525676447229 3.4066e-08 au
i 9.688858434627278 8.2676e-07 deg
node 151.6144914690943 6.0655e-06 deg
peri 139.10420897653 1.2828e-05 deg
M 57.69887678611726 1.011e-05 deg
tp 2459075.951249037518
(2020-Aug-14.45124904)
5.5647e-05 TDB
period 1999.996477821542
5.48
1.5422e-05
4.222e-08
d
yr
n .1800003169966195 1.388e-09 deg/d
Q 3.538701001240019 1.8191e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2379  
   data-arc span      26285 days (71.96 yr)  
   first obs. used      1949-08-21  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45061  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 08:42:27  

Additional Information
 Earth MOID = 1.66725 au 
 Jupiter MOID = 1.74451 au 
 T_jup = 3.183 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456675.5 (2014-Jan-18.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1374683917741562 1.145e-08  
q 2.679933832095208 3.4044e-08 au
tp 2457081.123775997322
(2015-Feb-27.62377600)
5.6068e-05 TDB
node 151.6986309730852 6.0779e-06 deg
peri 140.2759515911401 1.2983e-05 deg
i 9.676588452058661 8.2551e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2379  
   data-arc span      26285 days (71.96 yr)  
   first obs. used      1949-08-21  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45061  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 08:42:27  

Additional Information
 Jupiter MOID = 1.74451 au 
 T_jup = 3.183 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.311070847791002E-16 -3.603140290648038E-16 1.890969960971375E-14 8.219348667795193E-15 -8.773595435075845E-15 -4.840283432913595E-15
q -3.603140290648038E-16 1.158962433611101E-15 -1.423507314827719E-13 -2.834357557706208E-14 1.137685199380165E-14 1.543436214013414E-14
tp 1.890969960971375E-14 -1.423507314827719E-13 3.143587414378281E-9 3.078854907988164E-11 6.514773960839983E-10 -1.105357199600583E-11
node 8.219348667795193E-15 -2.834357557706208E-14 3.078854907988164E-11 3.694077878580234E-11 -2.82233517154946E-11 -9.792818454833979E-13
peri -8.773595435075845E-15 1.137685199380165E-14 6.514773960839983E-10 -2.82233517154946E-11 1.685597526362034E-10 -1.145026647635783E-12
i -4.840283432913595E-15 1.543436214013414E-14 -1.105357199600583E-11 -9.792818454833979E-13 -1.145026647635783E-12 6.814585840662774E-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 12.55   n/a MPO636099  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1908-Jul-21 15:48 00:03 Jupiter 1.96701239740012 1.96701125963184 1.96701353517456 3.36687331770587 3.23644998606889 2418144.158401509 2.55904137958372 188.99429287905 7.13572316990581 -76.2449399005093 8170291.37247711 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 08:43:05 2021-Aug-25 08:43
1918-Aug-21 16:27 00:03 Jupiter 1.75716171876577 1.75716152755036 1.75716190998109 1.8991191313215 1.62559932349963 2421827.185162130 2.62295004524618 51.7499666586456 12.9425155960659 -36.5739466073841 3649520.01022798 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 08:43:05 2021-Aug-25 08:43
1928-Aug-10 23:24 00:02 Jupiter 1.88957701973804 1.88957640296002 1.88957763651907 3.48345339941539 3.35230172087472 2425469.475261239 2.17350566510756 137.781023754166 9.86622536515165 -84.0418330246963 6377269.54281218 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 08:43:05 2021-Aug-25 08:43
1990-Apr-17 14:00 < 00:01 Jupiter 1.76430518610743 1.76430500004555 1.76430537216931 2.22911916065931 2.0021976344893 2447999.083660471 0.670686476490092 27.1940856493346 7.08643158738859 79.8562009288643 6162706.69933137 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 08:43:05 2021-Aug-25 08:43
2000-Apr-02 17:28 < 00:01 Jupiter 1.84414201270168 1.84414173754769 1.84414228785568 2.8148591253504 2.64666263955059 2451637.227711417 0.403009844699233 24.701099241981 7.53322870896668 89.1335576129886 5694132.41658214 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 08:43:05 2021-Aug-25 08:43
2061-Dec-04 14:51 00:01 Jupiter 1.79692554729988 1.79692532782207 1.79692576677819 2.62707947197379 2.44106538015694 2474163.118436384 1.17331347488197 68.1777624750909 4.20372860847067 89.0801322207141 8266177.9954284 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 08:43:05 2021-Aug-25 08:43
2071-Dec-01 19:00 00:02 Jupiter 1.80946883394916 1.80946841827577 1.80946924962328 2.237841871412 2.01785158590243 2477812.291340749 1.56158116012446 81.3848437496938 1.56848077901032 77.483969577 5462770.35045199 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 08:43:05 2021-Aug-25 08:43
2133-Jul-19 23:27 00:03 Jupiter 1.85190843521956 1.8519075692543 1.85190930119303 2.98793643270981 2.83072566037261 2500322.476825449 2.86550864567071 208.108760958418 4.86562097524006 -82.4216008016744 8900151.28742937 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 08:43:05 2021-Aug-25 08:43
2143-Aug-06 00:15 00:04 Jupiter 1.78360575749927 1.78360519904966 1.78360631595323 1.98052681184541 1.72415189435993 2503991.510490818 3.53055699801111 162.065478555356 6.88009142563837 89.2182511483528 5630811.20713524 T 43 CATAB v2.0g-lin.ifort 2021-Aug-25 08:43:05 2021-Aug-25 08:43

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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