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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1897960038596566 3.3522e-08  
a 2.537528792982857 1.2566e-08 au
q 2.055915968395893 8.6568e-08 au
i 4.7019098817624 3.8417e-06 deg
node 255.297696709964 4.2195e-05 deg
peri 59.6859941179704 4.3999e-05 deg
M 219.152441674234 1.4763e-05 deg
tp 2459578.145929020778
(2021-Dec-29.64592902)
6.17e-05 TDB
period 1476.436914628702
4.04
1.0968e-05
3.003e-08
d
yr
n .2438302621893829 1.8113e-09 deg/d
Q 3.019141617569821 1.4952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1854  
   data-arc span      24358 days (66.69 yr)  
   first obs. used      1953-09-16  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:30:07  

Additional Information
 Earth MOID = 1.04693 au 
 Jupiter MOID = 2.27722 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 13.8   n/a MPO319284  

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

[ show close-approach data ]
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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