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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1487747697782598 3.3931e-08  
a 3.139981435974467 1.492e-08 au
q 2.672831420729356 1.1281e-07 au
i 1.161119015731726 4.2437e-06 deg
node 195.943243571861 0.00016006 deg
peri 255.6919780741978 0.00016079 deg
M 331.0268336077534 1.3787e-05 deg
tp 2459364.062035778406
(2021-May-29.56203578)		 7.7965e-05 TDB
period 2032.305757785023
5.56		 1.4485e-05
3.966e-08		 d
yr
n .1771387000312188 1.2625e-09 deg/d
Q 3.607131451219578 1.714e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1520  
   data-arc span      9901 days (27.11 yr)  
   first obs. used      1993-12-09  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50145  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:19:17  

Additional Information
 Earth MOID = 1.6895 au 
 Jupiter MOID = 1.58863 au 
 T_jup = 3.193 
[ 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 13.97   n/a E2021B10  
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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