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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1175413163265547 2.0742e-08  
a 2.629276994869016 8.791e-09 au
q 2.320228315904984 5.7776e-08 au
i 2.456185902457641 9.8446e-07 deg
node 107.9844842081448 2.2677e-05 deg
peri 324.6755337385563 2.2236e-05 deg
M 305.4762844516014 9.9336e-06 deg
tp 2459436.350000662750
(2021-Aug-09.85000066)
4.3437e-05 TDB
period 1557.230635964677
4.26
7.8099e-06
2.138e-08
d
yr
n .2311796285570675 1.1594e-09 deg/d
Q 2.938325673833047 9.8243e-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      .48036  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:04:05  

Additional Information
 Earth MOID = 1.33504 au 
 Jupiter MOID = 2.29914 au 
 T_jup = 3.390 
[ 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 13.87   n/a E2021B10  
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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