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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1174919519975583 2.8347e-08  
a 2.630476577402064 9.3247e-09 au
q 2.321416749639239 7.7829e-08 au
i 2.456175065073979 3.012e-06 deg
node 107.9840060702981 8.796e-05 deg
peri 324.4501583915439 8.9716e-05 deg
M 259.4732924118828 1.8533e-05 deg
tp 2459435.640036293795
(2021-Aug-09.14003629)		 8.118e-05 TDB
period 1558.296464931506
4.27		 8.2859e-06
2.269e-08		 d
yr
n .2310215084880036 1.2284e-09 deg/d
Q 2.939536405164889 1.042e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2073  
   data-arc span      15322 days (41.95 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48415  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:47:42  

Additional Information
 Earth MOID = 1.3367 au 
 Jupiter MOID = 2.29889 au 
 T_jup = 3.389 
[ 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 MPO302139  
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

[ show close-approach data ]
Alternate Designations
 1995 WB = 1978 WP11 = 1982 UX1 = 1986 TS14 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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