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15688 (1981 UW23)
Classification: Main-belt Asteroid          SPK-ID: 2015688
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 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2023857282739966 2.0581e-08  
a 2.592799243802431 9.6483e-09 au
q 2.068053680577208 5.359e-08 au
i 13.94425766697541 5.404e-07 deg
node 59.63784746935524 2.3373e-06 deg
peri 283.4484660302202 4.8702e-06 deg
M 178.0287768205347 4.4749e-06 deg
tp 2458446.381715170909
(2018-Nov-23.88171517)
1.5837e-05 TDB
period 1524.936515247453
4.18
8.5119e-06
2.33e-08
d
yr
n .2360754014350444 1.3177e-09 deg/d
Q 3.117544807027653 1.1601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2687  
   data-arc span      14382 days (39.38 yr)  
   first obs. used      1981-10-24  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4372  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:05:49  

Additional Information
 Earth MOID = 1.1121 au 
 Jupiter MOID = 2.46889 au 
 T_jup = 3.349 
[ 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 12.84   n/a E2021B10  
diameter diameter 7.457 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.363   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15688 (1981 UW23)          Discovered 1981-Oct-24 by Bus, S. J. at Palomar
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 UW23 = 1981 WS3 = 2000 ES103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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