Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
5354 Hisayo (1990 BJ2)
Classification: Main-belt Asteroid          SPK-ID: 2005354
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05490340207930549 3.6297e-08  
a 3.193343228777167 1.7621e-08 au
q 3.018017821510386 1.1616e-07 au
i 4.908314202132485 3.7509e-06 deg
node 133.1790329659703 4.5996e-05 deg
peri 65.95648537509871 5.7143e-05 deg
M 50.58297837275854 3.3298e-05 deg
tp 2458707.634156358075
(2019-Aug-12.13415636)
0.00019303 TDB
period 2084.331668533645
5.71
1.7252e-05
4.723e-08
d
yr
n .172717233746808 1.4296e-09 deg/d
Q 3.368668636043947 1.8588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2181  
   data-arc span      25558 days (69.97 yr)  
   first obs. used      1950-02-08  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:35:37  

Additional Information
 Earth MOID = 2.02027 au 
 Jupiter MOID = 1.60093 au 
 T_jup = 3.188 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456418.5 (2013-May-06.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05362501619863427 3.6312e-08  
q 3.01979997830774 1.1612e-07 au
tp 2456611.450772289661
(2013-Nov-14.95077229)
0.00019978 TDB
node 133.2186399919452 4.6025e-05 deg
peri 63.72551289044071 5.7652e-05 deg
i 4.907448523738868 3.7505e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2181  
   data-arc span      25558 days (69.97 yr)  
   first obs. used      1950-02-08  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47169  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:35:37  

Additional Information
 Jupiter MOID = 1.60093 au 
 T_jup = 3.188 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.318578132035904E-15 -4.171142183349492E-15 -3.253866350938428E-14 -2.359124516561153E-16 -1.36774528458803E-14 -7.142503927805284E-16
q -4.171142183349492E-15 1.34846799356953E-14 -4.408360329415498E-13 -2.176555291805687E-15 -5.66152560412869E-14 3.544642502597375E-15
tp -3.253866350938428E-14 -4.408360329415498E-13 3.991114292854614E-8 1.465134011345339E-11 6.958872826369328E-9 -2.79979152487697E-12
node -2.359124516561153E-16 -2.176555291805687E-15 1.465134011345339E-11 2.118292446163932E-9 -2.107896105812584E-9 1.443317164557037E-11
peri -1.36774528458803E-14 -5.66152560412869E-14 6.958872826369328E-9 -2.107896105812584E-9 3.32372700288745E-9 -1.481096078863095E-11
i -7.142503927805284E-16 3.544642502597375E-15 -2.79979152487697E-12 1.443317164557037E-11 -1.481096078863095E-11 1.406588065474026E-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 12.0   n/a MPO302096  
diameter diameter 15.610 km 0.407 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 14.29164 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.126   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5354 Hisayo           Discovered 1990 Jan. 30 by S. Ueda and H. Kaneda at Kushiro.
Named in honor of Hisayo Kaneda (b. 1977), daughter of the second discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19960828/MPCPages.arcLast Updated: 2003-09-26

[ show close-approach data ]
Alternate Designations
 1990 BJ2 = 1976 UR20 = 1985 HK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-09 17:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin