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212930 (2008 BX6)
Classification: Outer Main-belt Asteroid          SPK-ID: 2212930
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1144839137071571 4.5877e-08  
a 3.245134291621758 3.8574e-08 au
q 2.873618617411596 1.5208e-07 au
i 5.71401267914622 6.5925e-06 deg
node 150.1652670660433 6.7909e-05 deg
peri 157.0523234089528 7.5883e-05 deg
M 230.5339404319668 3.4179e-05 deg
tp 2459768.393279341542
(2022-Jul-07.89327934)
0.00020394 TDB
period 2135.243642119868
5.85
3.8072e-05
1.042e-07
d
yr
n .1685990267801909 3.0062e-09 deg/d
Q 3.61664996583192 4.2991e-08 au
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      8782 days (24.04 yr)  
   first obs. used      1996-01-13  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61543  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:52:19  

Additional Information
 Earth MOID = 1.86003 au 
 Jupiter MOID = 1.64869 au 
 T_jup = 3.165 
[ 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 MPO427253  
rotation period rot_per 3.12 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

212930 (2008 BX6)          Discovered 2008-Jan-16 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2008 BX6 = 1996 AW17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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