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JPL Small-Body Database Browser
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46489 (4156 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2046489
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1295421646663444 3.4347e-08  
a 2.607638147659943 1.2377e-08 au
q 2.269839057345537 9.2096e-08 au
i 1.477841496791552 3.3787e-06 deg
node 68.43157681088937 0.00018159 deg
peri 230.9003367547859 0.00018263 deg
M 349.0116839254552 1.8131e-05 deg
tp 2458647.445942016840
(2019-Jun-12.94594202)
7.7364e-05 TDB
period 1538.046322239843
4.21
1.095e-05
2.998e-08
d
yr
n .2340631714366933 1.6664e-09 deg/d
Q 2.945437237974348 1.398e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1021  
   data-arc span      16844 days (46.12 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5716  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:27:22  

Additional Information
 Earth MOID = 1.25376 au 
 Jupiter MOID = 2.24432 au 
 T_jup = 3.399 
[ 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 MPO436107  
diameter diameter 2.151 km 0.560 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.348   0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46489 (4156 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4156 T-2 = 2001 FE103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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