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17623 (1995 WO42)
Classification: Main-belt Asteroid          SPK-ID: 2017623
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1331320409081878 4.1377e-08  
a 3.101563214959831 1.8958e-08 au
q 2.688645774146468 1.2665e-07 au
i 18.46702305917007 4.4284e-06 deg
node 44.83081236902069 1.2673e-05 deg
peri 339.9087101317629 1.9988e-05 deg
M 187.5043588159972 1.6013e-05 deg
tp 2459956.471636969598
(2023-Jan-11.97163697)
9.2037e-05 TDB
period 1995.121656099978
5.46
1.8293e-05
5.008e-08
d
yr
n .1804401244903132 1.6544e-09 deg/d
Q 3.514480655773193 2.1482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1529  
   data-arc span      8564 days (23.45 yr)  
   first obs. used      1995-11-30  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46065  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:32:03  

Additional Information
 Earth MOID = 1.70102 au 
 Jupiter MOID = 1.93552 au 
 T_jup = 3.129 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457005.5 (2014-Dec-14.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1330107262330762 4.1384e-08  
q 2.689256803623694 1.2667e-07 au
tp 2457963.997572233566
(2017-Jul-29.49757223)
8.5971e-05 TDB
node 44.85340922924595 1.267e-05 deg
peri 340.5673113611639 1.9988e-05 deg
i 18.46890379725244 4.4288e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1529  
   data-arc span      8564 days (23.45 yr)  
   first obs. used      1995-11-30  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46065  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:32:03  

Additional Information
 Jupiter MOID = 1.93552 au 
 T_jup = 3.129 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.712598458654016E-15 -5.19898194903804E-15 5.656111463811974E-13 1.408552768527406E-16 3.72515146396892E-14 1.372975160584434E-15
q -5.19898194903804E-15 1.604516469902921E-14 -1.442377804052816E-12 -1.647809953359289E-15 -8.73791252230428E-14 -3.284077106975575E-15
tp 5.656111463811974E-13 -1.442377804052816E-12 7.390965259951388E-9 -2.41321018660708E-12 1.33619855683792E-9 -4.844653615085712E-12
node 1.408552768527406E-16 -1.647809953359289E-15 -2.41321018660708E-12 1.605343534086309E-10 -1.523028440741942E-10 4.341852018096295E-12
peri 3.72515146396892E-14 -8.73791252230428E-14 1.33619855683792E-9 -1.523028440741942E-10 3.995260780105027E-10 -5.12765758631379E-12
i 1.372975160584434E-15 -3.284077106975575E-15 -4.844653615085712E-12 4.341852018096295E-12 -5.12765758631379E-12 1.961435473192691E-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 13.0   n/a MPO474000  

17623 (1995 WO42)          Discovered 1995-Nov-30 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 WO42 = 1998 HC41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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