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74928 (1999 TE154)
Classification: Main-belt Asteroid          SPK-ID: 2074928
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .222706976241344 3.8959e-08  
a 2.369285273607735 9.0301e-09 au
q 1.841628914469411 9.3597e-08 au
i 5.204166321013546 4.0586e-06 deg
node 55.68947869652344 5.2077e-05 deg
peri 251.6302415492639 5.2855e-05 deg
M 290.4785102898523 1.0908e-05 deg
tp 2459257.741497034297
(2021-Feb-12.24149703)
4.0899e-05 TDB
period 1332.062061938662
3.65
7.6154e-06
2.085e-08
d
yr
n .2702576781415587 1.5451e-09 deg/d
Q 2.896941632746059 1.1041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      846  
   data-arc span      8009 days (21.93 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5727  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:09:34  

Additional Information
 Earth MOID = .834969 au 
 Jupiter MOID = 2.37818 au 
 T_jup = 3.506 
[ 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 15.7   n/a MPO351371  
diameter diameter 1.695 km 0.295 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.294   0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74928 (1999 TE154)          Discovered 1999-Oct-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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