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15983 (1998 WM1)
Classification: Main-belt Asteroid          SPK-ID: 2015983
[ 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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899241519876597 1.9693e-08  
a 2.537058805163963 1.2452e-08 au
q 2.055210063050372 5.2669e-08 au
i 4.702036032511834 1.2073e-06 deg
node 255.2914523260189 4.8723e-06 deg
peri 59.74127455908812 9.7323e-06 deg
M 267.8761802229658 1.1424e-05 deg
tp 2459578.214505560884
(2021-Dec-29.71450556)		 4.7962e-05 TDB
period 1476.026746730887
4.04		 1.0867e-05
2.975e-08		 d
yr
n .243898019326093 1.7956e-09 deg/d
Q 3.018907547277554 1.4817e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1909  
   data-arc span      24635 days (67.45 yr)  
   first obs. used      1953-09-16  
   last obs. used      2021-02-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49476  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:14:53  

Additional Information
 Earth MOID = 1.04427 au 
 Jupiter MOID = 2.27739 au 
 T_jup = 3.417 
[ 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 13.85   n/a E2021B10  

15983 (1998 WM1)          Discovered 1998-Nov-18 by Kobayashi, T. at Oizumi
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 WM1 = 1985 OQ = 2000 CZ69 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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