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21807 (1999 TH14)
Classification: Main-belt Asteroid          SPK-ID: 2021807
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1800889282150799 3.4611e-08  
a 3.16137900564161 1.6008e-08 au
q 2.592049648833957 1.153e-07 au
i 1.872203621812066 3.5662e-06 deg
node 103.707750916173 0.00012198 deg
peri 232.8193282520841 0.00012251 deg
M 349.1508885197755 1.0837e-05 deg
tp 2459458.373537292704
(2021-Aug-31.87353729)
6.1794e-05 TDB
period 2053.114991580155
5.62
1.5594e-05
4.269e-08
d
yr
n .1753433205038995 1.3318e-09 deg/d
Q 3.730708362449263 1.8891e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1663  
   data-arc span      11104 days (30.40 yr)  
   first obs. used      1991-03-15  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48894  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:45:49  

Additional Information
 Earth MOID = 1.58235 au 
 Jupiter MOID = 1.65547 au 
 T_jup = 3.179 
[ show covariance matrix ]

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 13.68   n/a MPO636391  

21807 (1999 TH14)          Discovered 1999-Oct-10 by Korlevic, K., Juric, M. at Visnjan
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ 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
1956-Dec-24 20:56 00:02 Jupiter 1.79798019942908 1.79797967556556 1.79798072329259 1.93526188798682 1.67422973503314 2435832.372298065 1.52013575270126 86.0943746901761 11.6323927050369 -87.0288065903003 2477063.71907083 T 27 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:55 2021-Aug-24 22:45
1967-Oct-02 01:21 00:01 Jupiter 1.69298153938392 1.69298123455938 1.69298184420827 1.71084721451537 1.38793732561758 2439765.556320690 1.18770982382635 79.0869584655928 28.7238529719801 -74.3940377679515 3083317.41717782 T 27 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:55 2021-Aug-24 22:45
1978-Jun-30 21:53 < 00:01 Jupiter 1.75857045995992 1.75857011777529 1.75857080214435 2.20964354039551 1.97970112864801 2443690.412089867 0.889202508668236 40.129890390284 7.23573662323903 -88.0830264961926 2923864.22574071 T 27 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:55 2021-Aug-24 22:45
1989-Mar-16 10:11 < 00:01 Jupiter 1.95208708552455 1.95208669054151 1.95208748050758 3.45728498865837 3.32941545551107 2447601.924018605 0.600259672211671 31.7293352175277 14.8709582099106 -86.8827663082288 3699646.00914622 T 27 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:55 2021-Aug-24 22:45
2064-Sep-06 13:30 00:01 Jupiter 1.9382994819914 1.93829883326594 1.93830013071674 2.44494857877073 2.25915656219853 2475170.062295011 1.11018333663869 58.1185882351622 8.9295607733786 -85.084550221174 2089369.57879217 T 27 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:55 2021-Aug-24 22:45
2075-Jun-13 15:57 00:01 Jupiter 1.75684260273247 1.75684206931703 1.75684313614772 1.80259148021261 1.51164830991643 2479102.164689940 1.42018094132636 84.2375823999047 25.4445691439175 85.9621084575099 2197331.2194432 T 27 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:55 2021-Aug-24 22:45
2086-Mar-20 09:49 00:02 Jupiter 1.7077269483318 1.70772663993052 1.70772725673309 1.79510321121161 1.49345482525375 2483034.909087918 1.77824700367168 91.2453412984753 20.3347809707129 -79.8176308176181 3264023.89698467 T 27 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:55 2021-Aug-24 22:45
2096-Dec-13 03:26 00:02 Jupiter 1.82171218021051 1.8217113858285 1.82171297459211 2.52635935282614 2.33507439721721 2486955.642832575 2.18080990040399 38.7108120534355 10.3661420208997 85.8719336269408 1416067.82461165 T 27 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:55 2021-Aug-24 22:45
2183-Feb-21 22:10 00:04 Jupiter 1.87288155120441 1.87288008621319 1.87288301619733 2.18162126500299 1.96340487709566 2518436.423457521 4.01642077472849 149.940229476921 2.43317739338504 -87.81900025352 1806101.24098076 T 27 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:55 2021-Aug-24 22:45
2193-Nov-30 07:44 00:04 Jupiter 1.73316776551418 1.73316706116592 1.73316846986775 1.73827940971928 1.42975112374067 2522370.821984535 4.29665479151769 217.669956693332 28.3484711819249 87.5276911983985 2563471.84054265 T 27 CATAB v2.0g-lin.ifort 2021-Aug-24 22:45:55 2021-Aug-24 22:45

Alternate Designations
 1999 TH14 = 1993 QC6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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