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181909 (1999 TX15)
Classification: Outer Main-belt Asteroid          SPK-ID: 2181909
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09438388060235549 7.4526e-08  
a 3.214249103806935 4.0013e-08 au
q 2.910875800166993 2.5255e-07 au
i 1.439134210521416 8.0637e-06 deg
node 15.78980902302018 0.00021126 deg
peri 355.4797885636081 0.00021397 deg
M 250.2459115841932 3.9397e-05 deg
tp 2459842.205749286134
(2022-Sep-19.70574929)
0.00023857 TDB
period 2104.833387780548
5.76
3.9303e-05
1.076e-07
d
yr
n .1710349152051431 3.1937e-09 deg/d
Q 3.517622407446877 4.3789e-08 au
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      7560 days (20.70 yr)  
   first obs. used      1999-10-12  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60092  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:33  

Additional Information
 Earth MOID = 1.90918 au 
 Jupiter MOID = 1.94745 au 
 T_jup = 3.183 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.88   n/a E2021B55  
diameter diameter 3.796 km 0.545 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181909 (1999 TX15)          Discovered 1999-Oct-12 by Pravec, P., Kusnirak, P. at Ondrejov
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

Alternate Designations
 1999 TX15 = 2005 VJ58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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