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16331 (4101 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2016331
[ 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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302438269812536 3.4219e-08  
a 3.170689705103889 2.0061e-08 au
q 2.757726943741096 1.0887e-07 au
i 1.849177465098765 3.8769e-06 deg
node 87.29094360413337 0.00013196 deg
peri 174.7332242185004 0.0001332 deg
M 195.8348533913546 2.1145e-05 deg
tp 2459940.888909746295
(2022-Dec-27.38890975)		 0.00012588 TDB
period 2062.191728891848
5.65		 1.9571e-05
5.358e-08		 d
yr
n .1745715468432471 1.6568e-09 deg/d
Q 3.583652466466682 2.2674e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1728  
   data-arc span      17211 days (47.12 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50523  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:02:26  

Additional Information
 Earth MOID = 1.74218 au 
 Jupiter MOID = 1.4831 au 
 T_jup = 3.188 
[ 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 13.4   n/a MPO452402  
diameter diameter 11.751 km 0.236 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16331 (4101 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4101 T-2 = 1993 DW2 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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