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14638 (1998 WQ1)
Classification: Main-belt Asteroid          SPK-ID: 2014638
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 .1485980967905416 3.6121e-08  
a 3.139275302807893 1.8924e-08 au
q 2.672784967509089 1.1645e-07 au
i 1.161251574134162 4.8136e-06 deg
node 195.9442023033905 0.00021338 deg
peri 255.733743303046 0.00021403 deg
M 295.5412404124788 1.7458e-05 deg
tp 2459364.265891555229
(2021-May-29.76589156)
9.9994e-05 TDB
period 2031.620245221638
5.56
1.8371e-05
5.03e-08
d
yr
n .1771984704556466 1.6023e-09 deg/d
Q 3.605765638106698 2.1737e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1164  
   data-arc span      9493 days (25.99 yr)  
   first obs. used      1993-12-09  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55029  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:48:46  

Additional Information
 Earth MOID = 1.68972 au 
 Jupiter MOID = 1.58972 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456483.5 (2013-Jul-10.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1433403028619034 3.5982e-08  
q 2.694724422501695 1.1546e-07 au
tp 2457325.909431262183
(2015-Oct-30.40943126)
9.8374e-05 TDB
node 195.9445961855689 0.0002142 deg
peri 255.2141334017032 0.00021491 deg
i 1.153690560462866 4.8211e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1164  
   data-arc span      9493 days (25.99 yr)  
   first obs. used      1993-12-09  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55029  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:48:46  

Additional Information
 Jupiter MOID = 1.58972 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.294717381040711E-15 -4.112350293372715E-15 5.05397293107708E-13 8.151277200411302E-15 8.730524047037187E-14 -2.914687920780832E-16
q -4.112350293372715E-15 1.333131715102872E-14 -1.15854579720853E-12 -2.646923309200162E-14 -2.217241203875727E-13 1.20033497891127E-15
tp 5.05397293107708E-13 -1.15854579720853E-12 9.677522905784089E-9 1.101560240314509E-12 1.730221412387934E-9 1.36826954232711E-13
node 8.151277200411302E-15 -2.646923309200162E-14 1.101560240314509E-12 4.58831814208661E-8 -4.587388281064091E-8 -2.375756266780018E-10
peri 8.730524047037187E-14 -2.217241203875727E-13 1.730221412387934E-9 -4.587388281064091E-8 4.618689534571527E-8 2.375457432401934E-10
i -2.914687920780832E-16 1.20033497891127E-15 1.36826954232711E-13 -2.375756266780018E-10 2.375457432401934E-10 2.324323401802516E-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 14.0   n/a MPO358773  
diameter diameter 8.177 km 0.220 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14638 (1998 WQ1)          Discovered 1998-Nov-18 by Kobayashi, T. at Oizumi
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WQ1 = 1997 SZ28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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