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JPL Small-Body Database Browser
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20941 (1341 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2020941
[ 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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05964006692806827 4.3224e-08  
a 2.673649210209696 1.369e-08 au
q 2.514192592370613 1.1632e-07 au
i 2.74958108745164 6.3302e-06 deg
node .6434981796321617 9.1116e-05 deg
peri 84.96296419314753 0.00011637 deg
M 77.42126744591698 6.8551e-05 deg
tp 2458257.090075535926
(2018-May-18.59007554)		 0.00030418 TDB
period 1596.816700184189
4.37		 1.2264e-05
3.358e-08		 d
yr
n .2254485439427549 1.7315e-09 deg/d
Q 2.833105828048779 1.4506e-08 au
   Orbit Determination Parameters
   # obs. used (total)      895  
   data-arc span      16658 days (45.61 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55734  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:47:22  

Additional Information
 Earth MOID = 1.53216 au 
 Jupiter MOID = 2.28163 au 
 T_jup = 3.376 
[ 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 15.0   n/a MPO467951  
diameter diameter 2.553 km 0.262 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.357   0.197 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20941 (1341 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1341 T-2 = 1995 UH46 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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