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(2015 TW346)
Classification: Mars-crossing Asteroid          SPK-ID: 3731586
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5691486760892669 2.2125e-07  
a 3.041937820101428 1.4591e-07 au
q 1.31062293704483 7.1585e-07 au
i 26.89781193027244 4.6705e-05 deg
node 77.43833863334375 4.1359e-05 deg
peri 315.7566772675583 7.4894e-05 deg
M 358.2491138115323 2.3999e-05 deg
tp 2459209.924956222587
(2020-Dec-26.42495622)
0.00012954 TDB
period 1937.866814233485
5.31
0.00013943
3.817e-07
d
yr
n .1857712807484122 1.3366e-08 deg/d
Q 4.773252703158027 2.2896e-07 au
  Orbit Determination Parameters
   # obs. used (total)      169  
   data-arc span      1942 days (5.32 yr)  
   first obs. used      2015-10-15  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48381  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 14:59:17  

Additional Information
 Earth MOID = .407481 au 
 Jupiter MOID = 1.27667 au 
 T_jup = 2.832 
[ show covariance matrix ]

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 18.6   n/a E2015Y95  
diameter diameter 1.264 km 0.471 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.040   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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