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117987 (4106 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2117987
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1464817283408694 4.3366e-08  
a 3.151307483007497 2.7443e-08 au
q 2.689698516363043 1.3442e-07 au
i .9441861682064502 5.3223e-06 deg
node 66.46632092254248 0.00028704 deg
peri 112.8366553392327 0.00028769 deg
M 292.9746089015323 2.0315e-05 deg
tp 2459380.927106432668
(2021-Jun-15.42710643)
0.00011806 TDB
period 2043.311587910923
5.59
2.6691e-05
7.308e-08
d
yr
n .1761845829730077 2.3014e-09 deg/d
Q 3.61291644965195 3.1463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      17787 days (48.70 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5081  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 09:50:48  

Additional Information
 Earth MOID = 1.69338 au 
 Jupiter MOID = 1.3468 au 
 T_jup = 3.191 
[ 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 15.3   n/a MPO422408  
diameter diameter 4.632 km 0.284 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117987 (4106 T-1)          Discovered 1971-Mar-26 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 4106 T-1 = 2003 YJ123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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