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JPL Small-Body Database Browser
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15755 (1992 ET5)
Classification: Main-belt Asteroid          SPK-ID: 2015755
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .165787021518142 4.0278e-08  
a 3.170139067985198 1.8511e-08 au
q 2.644571154105633 1.2962e-07 au
i 6.842177264070425 4.8787e-06 deg
node 124.4640667871946 3.6583e-05 deg
peri 236.5398770349966 3.9089e-05 deg
M 144.4403650751469 1.3995e-05 deg
tp 2458173.316286419852
(2018-Feb-23.81628642)
7.8188e-05 TDB
period 2061.654557117231
5.64
1.8058e-05
4.944e-08
d
yr
n .1746170321100643 1.5294e-09 deg/d
Q 3.695706981864762 2.158e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1274  
   data-arc span      10172 days (27.85 yr)  
   first obs. used      1992-03-02  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5629  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:54:53  

Additional Information
 Earth MOID = 1.64889 au 
 Jupiter MOID = 1.78037 au 
 T_jup = 3.170 
[ 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 13.9   n/a MPO467865  
diameter diameter 8.378 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.252 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.041   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15755 (1992 ET5)          Discovered 1992-Mar-02 by UESAC at La Silla
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 ET5 = 1998 FS94 = 1999 JQ79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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