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JPL Small-Body Database Browser
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249564 (2238 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2249564
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2578137473150409 5.2751e-08  
a 2.38669145738695 1.0573e-08 au
q 1.771369589073224 1.234e-07 au
i 4.630526997459677 5.611e-06 deg
node 242.0287278526612 5.0907e-05 deg
peri 141.9541201315823 5.1991e-05 deg
M 90.31156719709186 9.9006e-06 deg
tp 2458262.642376542301
(2018-May-24.14237654)
3.5889e-05 TDB
period 1346.7681739963
3.69
8.9493e-06
2.45e-08
d
yr
n .2673065839770795 1.7763e-09 deg/d
Q 3.002013325700676 1.3299e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      15100 days (41.34 yr)  
   first obs. used      1977-10-07  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55509  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:38:49  

Additional Information
 Earth MOID = .777418 au 
 Jupiter MOID = 2.4645 au 
 T_jup = 3.485 
[ 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 16.8   n/a MPO413153  
diameter diameter 2.775 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249564 (2238 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2238 T-3 = 1999 RC145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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