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(2019 TH2)
Classification: Apollo [NEO]          SPK-ID: 3878575
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]
Orbit Diagram
[ switch to new HTML5 viewer ]

Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4604119729215418 0.00045937  
a 1.85709658094786 0.0016 au
q 1.002067080207806 1.0225e-05 au
i 7.812021617769192 0.0058111 deg
node 15.88605273798691 2.658e-05 deg
peri 22.54563832956527 0.0017206 deg
M 83.64585211069212 0.10657 deg
tp 2458785.720873650936
(2019-Oct-29.22087365)
0.0039174 TDB
period 924.3791955558235
2.53
1.1946
0.003271
d
yr
n .389450565017892 0.00050329 deg/d
Q 2.712126081687915 0.0023366 au
  Orbit Determination Parameters
   # obs. used (total)      45  
   data-arc span      12 days  
   first obs. used      2019-10-05  
   last obs. used      2019-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .48757  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-25 04:54:51  

Additional Information
 Earth MOID = .0234522 au 
 Jupiter MOID = 2.73499 au 
 T_jup = 3.853 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458763.5 (2019-Oct-07.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4612050691975844 0.00045815  
q 1.002359628758804 9.9066e-06 au
tp 2458785.626611201217
(2019-Oct-29.12661120)
0.0036568 TDB
node 15.93117395560554 0.0001325 deg
peri 22.38980467675978 0.001306 deg
i 7.831906949670404 0.0057702 deg
  Orbit Determination Parameters
   # obs. used (total)      45  
   data-arc span      12 days  
   first obs. used      2019-10-05  
   last obs. used      2019-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .48757  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-25 04:54:51  

Additional Information
 Jupiter MOID = 2.73499 au 
 T_jup = 3.853 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.099044180873714E-7 4.537154687593153E-9 -1.674737397242509E-6 -6.038762625249554E-8 -5.959892619356803E-7 2.643605448935783E-6
q 4.537154687593153E-9 9.814084230951132E-11 -3.622577691695839E-8 -1.307008940991599E-9 -1.291184293221719E-8 5.714397046987988E-8
tp -1.674737397242509E-6 -3.622577691695839E-8 1.337236256582171E-5 4.825207462563387E-7 4.766809521626595E-6 -2.109260589675921E-5
node -6.038762625249554E-8 -1.307008940991599E-9 4.825207462563387E-7 1.755664865020708E-8 1.721269928545881E-7 -7.607565129824146E-7
peri -5.959892619356803E-7 -1.291184293221719E-8 4.766809521626595E-6 1.721269928545881E-7 1.705518493114225E-6 -7.506389382915821E-6
i 2.643605448935783E-6 5.714397046987988E-8 -2.109260589675921E-5 -7.607565129824146E-7 -7.506389382915821E-6 3.329498357533831E-5

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.5   .51665 MPO504272 autocmod 2.8

[ 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
1943-Sep-09 22:51 1_21:33 Earth 0.304999523317458 0.276307976661482 0.33369588240341 15.8904029299564 15.8898531539282 2430977.452361933 2733.36111061677 1432126.29942499 26.843469659811 2.45753991042226 62408.3333689753 T 5 CATAB v2.0f-lin.ifort 2019-Nov-25 04:54:54 2019-Nov-25 04:55
2014-Sep-02 04:12 7_03:23 Earth 0.435666611222732 0.314142771241013 0.557292980401348 19.6992814704347 19.6989710065296 2456902.675137124 10283.4376558705 6071613.42108863 31.9475167220027 3.04339228624259 94672.0328489654 T 5 CATAB v2.0f-lin.ifort 2019-Nov-25 04:54:54 2019-Nov-25 04:55
2019-Oct-13 06:03 < 00:01 Earth 0.0237969724096121 0.0237350247139974 0.0238589189179286 7.8164929408559 7.80215531639461 2458769.752383982 0.10770187819331 3077.63772479276 12.9254656890799 0.160368190053938 687.950116265891 T 5 CATAB v2.0f-lin.ifort 2019-Nov-25 04:54:54 2019-Nov-25 04:55
2024-Dec-13 06:25 9_03:33 Earth 0.308196900896565 0.195863754011454 0.427630979322368 15.0118467075955 15.0112707927161 2460657.767299566 13173.0827659234 6234271.79692643 107.965868662626 -20.3564125095389 118505.16927549 T 5 CATAB v2.0f-lin.ifort 2019-Nov-25 04:54:54 2019-Nov-25 04:55
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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