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17747 (1998 BJ42)
Classification: Main-belt Asteroid          SPK-ID: 2017747
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1709139692626519 2.6852e-08  
a 2.317611024830373 6.0936e-09 au
q 1.921498925369732 6.2313e-08 au
i 2.274550003581832 3.5524e-06 deg
node 155.8289046826515 8.6614e-05 deg
peri 317.9220442889701 8.7496e-05 deg
M 92.14450529590532 1.182e-05 deg
tp 2458670.642630695435
(2019-Jul-06.14263070)
4.1858e-05 TDB
period 1288.722019487801
3.53
5.0826e-06
1.392e-08
d
yr
n .2793465111607863 1.1017e-09 deg/d
Q 2.713723124291015 7.1351e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1403  
   data-arc span      9237 days (25.29 yr)  
   first obs. used      1995-02-24  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50864  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:14:38  

Additional Information
 Earth MOID = .938673 au 
 Jupiter MOID = 2.38708 au 
 T_jup = 3.559 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456993.5 (2014-Dec-02.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1707772881193667 2.6912e-08  
q 1.922197663403091 6.2471e-08 au
tp 2457382.585912772614
(2015-Dec-26.08591277)
4.0455e-05 TDB
node 155.8347785747662 8.6605e-05 deg
peri 318.1415665175015 8.7484e-05 deg
i 2.27419148757937 3.5527e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1403  
   data-arc span      9237 days (25.29 yr)  
   first obs. used      1995-02-24  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50864  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:14:38  

Additional Information
 Jupiter MOID = 2.38708 au 
 T_jup = 3.559 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.242767811423382E-16 -1.675718446250557E-15 9.757936149746972E-14 -1.28259180623791E-14 3.382454678319944E-14 -2.806316454726899E-16
q -1.675718446250557E-15 3.902617046978488E-15 -1.839758478320917E-13 2.966603877640718E-14 -6.818197655788591E-14 6.831262840964253E-16
tp 9.757936149746972E-14 -1.839758478320917E-13 1.636596006100564E-9 -1.134879943001297E-11 5.111414087819049E-10 -7.158482131155481E-13
node -1.28259180623791E-14 2.966603877640718E-14 -1.134879943001297E-11 7.500370435577319E-9 -7.497351110773674E-9 7.541598651401534E-11
peri 3.382454678319944E-14 -6.818197655788591E-14 5.111414087819049E-10 -7.497351110773674E-9 7.653461836555713E-9 -7.557722798438278E-11
i -2.806316454726899E-16 6.831262840964253E-16 -7.158482131155481E-13 7.541598651401534E-11 -7.557722798438278E-11 1.262185880603615E-11

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 15.5   n/a MPO458988  

17747 (1998 BJ42)          Discovered 1998-Jan-26 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BJ42 = 1995 DD12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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