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JPL Small-Body Database Browser
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39440 (2282 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2039440
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .157714203451675 3.8839e-08  
a 2.448632479438506 9.7753e-09 au
q 2.062448358397962 9.7057e-08 au
i 7.40471666540801 3.8715e-06 deg
node 206.946157877636 3.2271e-05 deg
peri 267.9300035361398 3.437e-05 deg
M 221.7549237473417 1.2107e-05 deg
tp 2459137.941263136165
(2020-Oct-15.44126314)
4.7554e-05 TDB
period 1399.535231008264
3.83
8.3807e-06
2.295e-08
d
yr
n .257228251224977 1.5403e-09 deg/d
Q 2.83481660047905 1.1317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1003  
   data-arc span      15389 days (42.13 yr)  
   first obs. used      1977-10-07  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56267  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:09:44  

Additional Information
 Earth MOID = 1.09468 au 
 Jupiter MOID = 2.31503 au 
 T_jup = 3.469 
[ 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 15.4   n/a MPO395375  
diameter diameter 2.341 km 0.454 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.322   0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39440 (2282 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2282 T-3 = 1998 DB10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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