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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1468023711037756 4.4678e-08  
a 3.150549651299385 2.7857e-08 au
q 2.688041492208462 1.3758e-07 au
i .9443931183385346 5.3241e-06 deg
node 66.46527770278496 0.00029671 deg
peri 112.9094580434684 0.00029734 deg
M 222.4437875893377 1.9788e-05 deg
tp 2459380.968945980632
(2021-Jun-15.46894598)
0.0001178 TDB
period 2042.574563729765
5.59
2.709e-05
7.417e-08
d
yr
n .1762481558287085 2.3375e-09 deg/d
Q 3.613057810390309 3.1946e-08 au
  Orbit Determination Parameters
   # obs. used (total)      478  
   data-arc span      17779 days (48.68 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51334  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 11:04:00  

Additional Information
 Earth MOID = 1.69215 au 
 Jupiter MOID = 1.348 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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