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15847 (1995 WA2)
Classification: Main-belt Asteroid          SPK-ID: 2015847
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .193331418379755 2.9571e-08  
a 2.350531758737045 6.7131e-09 au
q 1.896100119873752 7.0863e-08 au
i 3.121121976637175 3.6095e-06 deg
node 215.8762134605719 6.0666e-05 deg
peri 256.7850591224098 6.1429e-05 deg
M 298.9423023474308 9.5078e-06 deg
tp 2459423.746950520849
(2021-Jul-28.24695052)
3.4987e-05 TDB
period 1316.27796784643
3.60
5.639e-06
1.544e-08
d
yr
n .2734984621743674 1.1717e-09 deg/d
Q 2.804963397600338 8.011e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1285  
   data-arc span      10163 days (27.82 yr)  
   first obs. used      1993-04-17  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49167  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:10:53  

Additional Information
 Earth MOID = .915424 au 
 Jupiter MOID = 2.31752 au 
 T_jup = 3.531 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.30   n/a E2021B10  

15847 (1995 WA2)          Discovered 1995-Nov-18 by Kobayashi, T. at Oizumi
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 WA2 = 1999 XY21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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