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441812 (2009 JH8)
Classification: Main-belt Asteroid          SPK-ID: 2441812
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09364589321661389 7.2713e-08  
a 3.01778583684929 5.7743e-08 au
q 2.735182586621092 2.2072e-07 au
i 13.60514971568485 8.0799e-06 deg
node 80.18728110484619 4.2067e-05 deg
peri 171.218078301319 7.4658e-05 deg
M 93.24628026194087 5.9744e-05 deg
tp 2458900.524680115206
(2020-Feb-21.02468012)
0.00031523 TDB
period 1914.833649738654
5.24
5.4958e-05
1.505e-07
d
yr
n .188005887638926 5.396e-09 deg/d
Q 3.300389087077489 6.315e-08 au
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      4462 days (12.22 yr)  
   first obs. used      2008-03-03  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57484  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:42:04  

Additional Information
 Earth MOID = 1.72144 au 
 Jupiter MOID = 1.75426 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457344.5 (2015-Nov-18.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0911086281885683 7.3431e-08  
q 2.743905614805498 2.2145e-07 au
tp 2456988.426082685642
(2014-Nov-26.92608269)
0.00031944 TDB
node 80.28311189946525 4.1975e-05 deg
peri 171.9557406758165 7.5654e-05 deg
i 13.61855898966046 8.0868e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      4462 days (12.22 yr)  
   first obs. used      2008-03-03  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57484  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:42:04  

Additional Information
 Jupiter MOID = 1.75426 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.392122628535421E-15 -1.582022450239397E-14 8.223683513946649E-13 4.572546642285594E-15 3.165150494937335E-13 -1.040481837786281E-14
q -1.582022450239397E-14 4.904022887286455E-14 -2.819884383774282E-12 -2.865623596994107E-16 -9.455287239933767E-13 3.763789468088026E-14
tp 8.223683513946649E-13 -2.819884383774282E-12 1.020397893667628E-7 3.060008341812826E-10 2.024676255753255E-8 4.370061588974492E-11
node 4.572546642285594E-15 -2.865623596994107E-16 3.060008341812826E-10 1.761891373696999E-9 -1.648869120576682E-9 -2.620858846001242E-11
peri 3.165150494937335E-13 -9.455287239933767E-13 2.024676255753255E-8 -1.648869120576682E-9 5.723559813983573E-9 3.431284579825764E-11
i -1.040481837786281E-14 3.763789468088026E-14 4.370061588974492E-11 -2.620858846001242E-11 3.431284579825764E-11 6.539673407152621E-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 16.43   n/a E2021B25  

441812 (2009 JH8)          Discovered 2009-Apr-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ 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
1917-Aug-01 12:40 00:08 Jupiter 1.7652054469872 1.76520464479686 1.76520624917895 3.64689396174984 3.5128547360948 2421442.027830060 8.44139412691085 464.882799137837 43.3221590678174 87.4811531517297 1260302.61654757 T 13 CATAB v2.0f-lin.ifort 2021-Apr-14 14:42:04 2021-Apr-14 14:42
1964-Aug-08 15:31 00:05 Jupiter 1.8005606690928 1.80055933129339 1.80056200689804 3.40763709289965 3.26667223484211 2438616.146336423 4.57484862459607 329.715948272505 61.6056846491159 -81.6164852974788 1509980.54908578 T 13 CATAB v2.0f-lin.ifort 2021-Apr-14 14:42:04 2021-Apr-14 14:42
2011-Aug-04 23:17 < 00:01 Jupiter 1.8769461320955 1.87694501655031 1.87694724764625 3.13725772647935 2.98995521003126 2455778.470004369 0.779909710435011 393.269177877807 43.9567021893639 -85.300732495635 1435902.83116971 T 13 CATAB v2.0f-lin.ifort 2021-Apr-14 14:42:04 2021-Apr-14 14:42
2049-May-05 13:29 00:03 Jupiter 1.93815606960942 1.93815444974558 1.93815768948726 3.99207931875356 3.88106266852828 2469567.061668557 2.79855680281967 303.832291656958 29.0703676232803 -75.9219962673794 1821070.39408219 T 13 CATAB v2.0f-lin.ifort 2021-Apr-14 14:42:04 2021-Apr-14 14:42
2058-Jul-20 11:03 00:04 Jupiter 1.98771948112315 1.9877173264166 1.98772163588517 3.01037999643859 2.865332815128 2472929.960572083 4.04212093553357 636.385279773975 46.6128920104533 -81.7707888308641 1374406.52606565 T 13 CATAB v2.0f-lin.ifort 2021-Apr-14 14:42:04 2021-Apr-14 14:42
2096-May-12 20:01 00:07 Jupiter 1.83403908810185 1.83403665638559 1.83404151990838 3.94317100281288 3.82425529649952 2486741.333722370 6.52305431390198 686.088768861481 25.5515234568321 -80.2866612325011 1776690.60772549 T 13 CATAB v2.0f-lin.ifort 2021-Apr-14 14:42:04 2021-Apr-14 14:42
2143-May-26 14:45 00:10 Jupiter 1.76939653879222 1.76939484416975 1.76939823357652 3.86191344873662 3.7359016961113 2503920.114654756 10.2517273989662 926.184892576038 26.0637635557335 -85.524936258538 1688126.00704412 T 13 CATAB v2.0f-lin.ifort 2021-Apr-14 14:42:04 2021-Apr-14 14:42
2190-Jun-10 00:31 00:14 Jupiter 1.75295589083726 1.75295448750314 1.75295729424322 3.73925747551893 3.60772131094729 2521101.521353315 14.4630813082486 747.495704178849 48.9047426326673 84.6869712585709 1513099.24901845 T 13 CATAB v2.0f-lin.ifort 2021-Apr-14 14:42:04 2021-Apr-14 14:42
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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