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11988 (1995 WB)
Classification: Main-belt Asteroid          SPK-ID: 2011988
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1176169803822128 2.0742e-08  
a 2.62933392901225 8.7197e-09 au
q 2.320079611865329 5.775e-08 au
i 2.45618229045703 9.8446e-07 deg
node 107.9839635140156 2.2677e-05 deg
peri 324.71413114 2.2237e-05 deg
M 350.760044125205 1.0029e-05 deg
tp 2459436.470027012919
(2021-Aug-09.97002701)		 4.3462e-05 TDB
period 1557.281216450608
4.26		 7.7466e-06
2.121e-08		 d
yr
n .2311721198439165 1.15e-09 deg/d
Q 2.93858824615917 9.7453e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2199  
   data-arc span      15414 days (42.20 yr)  
   first obs. used      1978-11-29  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48035  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:40:43  

Additional Information
 Earth MOID = 1.33519 au 
 Jupiter MOID = 2.29912 au 
 T_jup = 3.390 
[ 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 13.88   n/a MPCxxxxx  
diameter diameter 4.814 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.277   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11988 (1995 WB)          Discovered 1995-Nov-16 by Kobayashi, T. at Oizumi
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 WB = 1978 WP11 = 1982 UX1 = 1986 TS14 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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