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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
15672 Sato-Norio (1977 EX7)
Classification: Main-belt Asteroid          SPK-ID: 2015672
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1410451488582666 3.6175e-08  
a 2.423615970461495 8.5327e-09 au
q 2.081776695132481 8.6048e-08 au
i 2.279789793161733 4.2976e-06 deg
node 4.656648911238594 7.0042e-05 deg
peri 152.8995699256378 7.125e-05 deg
M 273.7290906704517 1.5681e-05 deg
tp 2459726.760025607884
(2022-May-27.26002561)
6.1185e-05 TDB
period 1378.142529652419
3.77
7.2779e-06
1.993e-08
d
yr
n .2612211670811694 1.3795e-09 deg/d
Q 2.765455245790509 9.7362e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1491  
   data-arc span      16221 days (44.41 yr)  
   first obs. used      1977-03-12  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49906  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:29:39  

Additional Information
 Earth MOID = 1.09207 au 
 Jupiter MOID = 2.21605 au 
 T_jup = 3.497 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457173.5 (2015-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1397707140880181 3.6111e-08  
q 2.085424284699845 8.5756e-08 au
tp 2456967.883193551133
(2014-Nov-06.38319355)
5.3221e-05 TDB
node 4.782509563215265 7.0025e-05 deg
peri 152.5332503573718 7.127e-05 deg
i 2.280041678652932 4.2969e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1491  
   data-arc span      16221 days (44.41 yr)  
   first obs. used      1977-03-12  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49906  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:29:39  

Additional Information
 Jupiter MOID = 2.21605 au 
 T_jup = 3.497 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.303979430457243E-15 -3.08598230403959E-15 8.327916262242603E-13 4.872484273871843E-15 2.106484043572781E-13 -2.539390699737088E-16
q -3.08598230403959E-15 7.354155149239961E-15 -1.818754876859614E-12 -1.129765000769226E-14 -4.611796539531785E-13 6.606412874754713E-16
tp 8.327916262242603E-13 -1.818754876859614E-12 2.832465489328981E-9 8.38754569161878E-12 7.112530975675601E-10 1.729762524105375E-13
node 4.872484273871843E-15 -1.129765000769226E-14 8.38754569161878E-12 4.903544013057278E-9 -4.897174595303118E-9 8.337549742945134E-12
peri 2.106484043572781E-13 -4.611796539531785E-13 7.112530975675601E-10 -4.897174595303118E-9 5.079471956145278E-9 -8.296598730201787E-12
i -2.539390699737088E-16 6.606412874754713E-16 1.729762524105375E-13 8.337549742945134E-12 -8.296598730201787E-12 1.846325493308219E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.88   n/a E2021B10  

15672 Sato-Norio           Discovered 1977 Mar. 12 by H. Kosai and K. Hurukawa at the Kiso Station of the Tokyo Astronomical Observatory.
Sato-Norio (1865-1942), a Japanese educator in the Meiji period, was born in Okayama prefecture.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

Alternate Designations
 1977 EX7 = 1998 WW13 = 2000 JR30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-16 16:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin