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15776 (1993 KO)
Classification: Main-belt Asteroid          SPK-ID: 2015776
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1190242486250177 2.8849e-08  
a 2.221078100494196 5.7326e-09 au
q 1.956715948445392 6.3488e-08 au
i 5.739738111410112 3.5724e-06 deg
node 198.5442550149689 2.601e-05 deg
peri 25.80272662828547 2.9421e-05 deg
M 130.1679251775703 1.3777e-05 deg
tp 2458763.334729090790
(2019-Oct-06.83472909)
4.5982e-05 TDB
period 1209.049751024488
3.31
4.6809e-06
1.282e-08
d
yr
n .2977544966160029 1.1528e-09 deg/d
Q 2.485440252542999 6.415e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2893  
   data-arc span      12165 days (33.31 yr)  
   first obs. used      1987-09-23  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45474  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:25:45  

Additional Information
 Earth MOID = .948778 au 
 Jupiter MOID = 2.48809 au 
 T_jup = 3.634 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457346.5 (2015-Nov-20.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1187658596263028 2.8869e-08  
q 1.958043679824793 6.3575e-08 au
tp 2457553.498012868662
(2016-Jun-13.99801287)
4.5598e-05 TDB
node 198.6001569645317 2.6018e-05 deg
peri 25.71985571033156 2.943e-05 deg
i 5.737813227338807 3.5715e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2893  
   data-arc span      12165 days (33.31 yr)  
   first obs. used      1987-09-23  
   last obs. used      2021-01-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45474  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:25:45  

Additional Information
 Jupiter MOID = 2.48809 au 
 T_jup = 3.634 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.333996813803144E-16 -1.82967569308943E-15 -5.753878435996168E-13 -2.377908142172708E-15 -1.783772044304136E-13 5.383474499203693E-16
q -1.82967569308943E-15 4.041813377966528E-15 1.291337218311806E-12 5.097806002543262E-15 3.990803367750395E-13 -1.236445856994373E-15
tp -5.753878435996168E-13 1.291337218311806E-12 2.079138031609741E-9 -3.168916368754698E-12 6.322619184102778E-10 -8.185176488107694E-13
node -2.377908142172708E-15 5.097806002543262E-15 -3.168916368754698E-12 6.769568892062773E-10 -6.741356591090897E-10 -2.666871046717879E-11
peri -1.783772044304136E-13 3.990803367750395E-13 6.322619184102778E-10 -6.741356591090897E-10 8.661429382781641E-10 2.629121944697275E-11
i 5.383474499203693E-16 -1.236445856994373E-15 -8.185176488107694E-13 -2.666871046717879E-11 2.629121944697275E-11 1.275578879053585E-11

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 13.96   n/a E2021B10  
diameter diameter 4.498 km 0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.36991 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.240   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15776 (1993 KO)          Discovered 1993-May-20 by Otomo, S. at Kiyosato
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 KO = 1987 SF23 = 1996 HH22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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