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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09436685310816609 7.4454e-08  
a 3.213691694566151 4.0236e-08 au
q 2.910425722490094 2.5207e-07 au
i 1.439220771753944 8.0643e-06 deg
node 15.79292889450063 0.00021125 deg
peri 355.6239273480771 0.00021396 deg
M 215.8665561357376 3.8994e-05 deg
tp 2459842.994366000966
(2022-Sep-20.49436600)
0.00023871 TDB
period 2104.285886945007
5.76
3.9519e-05
1.082e-07
d
yr
n .1710794156979527 3.2129e-09 deg/d
Q 3.516957666642208 4.4033e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60112  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:51:20  

Additional Information
 Earth MOID = 1.91027 au 
 Jupiter MOID = 1.94725 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 15.7   n/a MPO469958  
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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