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2634 James Bradley (1982 DL)
Classification: Outer Main-belt Asteroid          SPK-ID: 2002634
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 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04877538694471611 1.7007e-08  
a 3.459738928372217 1.7801e-08 au
q 3.290988823413164 5.9209e-08 au
i 6.421450438220721 3.1465e-07 deg
node 133.3467730678373 7.7725e-06 deg
peri 333.2506578937192 1.8871e-05 deg
M 45.86120767150494 1.8492e-05 deg
tp 2458901.062350311813
(2020-Feb-21.56235031)
0.00011971 TDB
period 2350.517122442143
6.44
1.8141e-05
4.967e-08
d
yr
n .1531577866686488 1.1821e-09 deg/d
Q 3.628489033331269 1.867e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3225  
   data-arc span      42412 days (116.12 yr)  
   first obs. used      1905-02-09  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42664  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:24:33  

Additional Information
 Earth MOID = 2.30921 au 
 Jupiter MOID = 1.43811 au 
 T_jup = 3.123 
[ 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 10.65   n/a E2021B10  
diameter diameter 33.726 km 0.488 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 16.284 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
[Ferrero, A.; Bonamico, R. (2020) Minor Planet Bull. 47, 147-148.]
geometric albedo albedo 0.107   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2634 James Bradley (1982 DL)          Discovered 1982-Feb-21 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1982 DL = 1931 FL = 1961 XH = 1963 FC = 1975 AO = 1976 GB1 = 1977 KP = A905 CC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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