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19901 (2191 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2019901
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .109062522712258 3.5558e-08  
a 2.75155789610838 1.3114e-08 au
q 2.451466050569967 9.8574e-08 au
i 3.943243751513505 4.951e-06 deg
node 342.5383773183841 5.457e-05 deg
peri 115.8387147777296 6.0993e-05 deg
M 95.40672438502483 2.4286e-05 deg
tp 2458758.682519742259
(2019-Oct-02.18251974)
0.00011285 TDB
period 1667.118265699018
4.56
1.1918e-05
3.263e-08
d
yr
n .2159414886196169 1.5438e-09 deg/d
Q 3.051649741646793 1.4544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      15585 days (42.67 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53308  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:41  

Additional Information
 Earth MOID = 1.47127 au 
 Jupiter MOID = 2.08295 au 
 T_jup = 3.333 
[ 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 15.33   n/a E2021B10  
diameter diameter 4.620 km 0.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19901 (2191 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2191 T-3 = 1995 SV11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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