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102269 (1999 TH44)
Classification: Main-belt Asteroid          SPK-ID: 2102269
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08877154194952144 4.7018e-08  
a 2.416685138574931 9.9008e-09 au
q 2.202152272417142 1.0946e-07 au
i 2.388761481219624 3.7574e-06 deg
node 309.1317404063665 0.00012505 deg
peri 201.3737681317903 0.00012782 deg
M 111.2414977717237 2.6284e-05 deg
tp 2458776.473635056728
(2019-Oct-19.97363506)
9.9707e-05 TDB
period 1372.235132008259
3.76
8.4328e-06
2.309e-08
d
yr
n .2623457100046271 1.6122e-09 deg/d
Q 2.631218004732721 1.078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      716  
   data-arc span      7569 days (20.72 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55934  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:41:12  

Additional Information
 Earth MOID = 1.21306 au 
 Jupiter MOID = 2.36109 au 
 T_jup = 3.510 
[ 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 16.01   n/a E2021B55  
diameter diameter 3.739 km 0.358 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102269 (1999 TH44)          Discovered 1999-Oct-03 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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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
2174-Oct-27 12:29 00:02 Thisb 0.0241759211122499 0.0241592818814036 0.0241925860482537 4.56942880837027 4.56942874664972 2515397.019919627 2.12514243677403 1497.15275195742 60.9873598808996 56.3997828029976 49389.0786483981 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 15:41:14 2021-Apr-13 15:41

Alternate Designations
 1999 TH44 = 1999 TT164 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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