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382978 (2005 BW2)
Classification: Main-belt Asteroid          SPK-ID: 2382978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2080172056498088 7.1761e-08  
a 2.683933470425398 2.5831e-08 au
q 2.125629129757513 1.9758e-07 au
i 11.87347198385646 1.1359e-05 deg
node 315.3051328533262 2.6277e-05 deg
peri 245.759012078656 3.6285e-05 deg
M 126.3882355458814 2.9162e-05 deg
tp 2458436.654399097768
(2018-Nov-14.15439910)
0.00012663 TDB
period 1606.038848854065
4.40
2.3186e-05
6.348e-08
d
yr
n .2241539799967267 3.236e-09 deg/d
Q 3.242237811093283 3.1204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      5645 days (15.46 yr)  
   first obs. used      2002-08-28  
   last obs. used      2018-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61553  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 22:03:17  

Additional Information
 Earth MOID = 1.15626 au 
 Jupiter MOID = 1.88896 au 
 T_jup = 3.314 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456830.5 (2014-Jun-22.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2067916132890931 7.1968e-08  
q 2.12972643700864 1.9789e-07 au
tp 2456828.624520798480
(2014-Jun-20.12452080)
0.00012011 TDB
node 315.3707440399048 2.6296e-05 deg
peri 245.7115816244831 3.6354e-05 deg
i 11.86590670075177 1.1352e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      5645 days (15.46 yr)  
   first obs. used      2002-08-28  
   last obs. used      2018-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61553  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 22:03:17  

Additional Information
 Jupiter MOID = 1.88896 au 
 T_jup = 3.314 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.179403357302616E-15 -1.416876995285542E-14 -5.700777734092835E-12 -4.648154236830754E-14 -1.077312515067755E-12 -7.980281667850441E-16
q -1.416876995285542E-14 3.916158291235197E-14 1.584048008944165E-11 1.318201644590152E-13 2.993442789206686E-12 -2.755687079049146E-16
tp -5.700777734092835E-12 1.584048008944165E-11 1.442680391374879E-8 1.041086692370877E-10 3.021351560966254E-9 2.907886677126969E-11
node -4.648154236830754E-14 1.318201644590152E-13 1.041086692370877E-10 6.91469755354833E-10 -6.534019140960266E-10 1.921292775720554E-11
peri -1.077312515067755E-12 2.993442789206686E-12 3.021351560966254E-9 -6.534019140960266E-10 1.321595476751776E-9 -1.238408916026165E-11
i -7.980281667850441E-16 -2.755687079049146E-16 2.907886677126969E-11 1.921292775720554E-11 -1.238408916026165E-11 1.288708592729411E-10

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 16.1   n/a MPO391930  

382978 (2005 BW2)          Discovered 2005-Jan-18 by Hug, G. at Sandlot
Reference: Last Updated: 2014-01-21

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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