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
JPL Small-Body Database Browser
Search: [ help ]  
24940 Sankichiyama (1997 JY4)
Classification: Main-belt Asteroid          SPK-ID: 2024940
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1438792170586803 2.8641e-08  
a 2.52706739054569 9.7213e-09 au
q 2.163474912939454 7.1292e-08 au
i 11.95384101583005 3.8437e-06 deg
node 51.46356719615768 1.5089e-05 deg
peri 264.8129698979212 2.1605e-05 deg
M 196.4781641983658 1.7183e-05 deg
tp 2459666.995030643528
(2022-Mar-28.49503064)
7.169e-05 TDB
period 1467.31603064153
4.02
8.4669e-06
2.318e-08
d
yr
n .245345918999197 1.4157e-09 deg/d
Q 2.890659868151926 1.112e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2042  
   data-arc span      8441 days (23.11 yr)  
   first obs. used      1997-05-01  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48539  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:37:21  

Additional Information
 Earth MOID = 1.18968 au 
 Jupiter MOID = 2.43614 au 
 T_jup = 3.408 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456984.5 (2014-Nov-23.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1450984861573354 2.874e-08  
q 2.159684492040595 7.1624e-08 au
tp 2456730.379717375417
(2014-Mar-13.87971738)
6.4896e-05 TDB
node 51.54809469787519 1.5109e-05 deg
peri 264.3132865747437 2.1489e-05 deg
i 11.94820770271625 3.8414e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2042  
   data-arc span      8441 days (23.11 yr)  
   first obs. used      1997-05-01  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48539  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:37:21  

Additional Information
 Jupiter MOID = 2.43614 au 
 T_jup = 3.408 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.259832537826064E-16 -2.045156392575441E-15 6.206784255449322E-13 -5.629676277693575E-15 1.379640660687961E-13 1.866627307543175E-15
q -2.045156392575441E-15 5.130044077689572E-15 -1.436663895667101E-12 1.4035869843332E-14 -3.17094805581225E-13 -4.542211995285238E-15
tp 6.206784255449322E-13 -1.436663895667101E-12 4.211503262993483E-9 -8.2390142182625E-12 1.000892604257817E-9 -2.563620438422315E-12
node -5.629676277693575E-15 1.4035869843332E-14 -8.2390142182625E-12 2.282915012396439E-10 -2.24852002720861E-10 -9.657633618969626E-12
peri 1.379640660687961E-13 -3.17094805581225E-13 1.000892604257817E-9 -2.24852002720861E-10 4.617770990227324E-10 8.781957588091507E-12
i 1.866627307543175E-15 -4.542211995285238E-15 -2.563620438422315E-12 -9.657633618969626E-12 8.781957588091507E-12 1.475624338808466E-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 14.0   n/a MPO324539  

24940 Sankichiyama           Discovered 1997 May 1 by T. Okuni at Nanyo.
Sankichiyama mountain is located to the east of Kaminoyama, a hot-spring town in Yamagata prefecture. The mountain is loved by citizens as a hiking course.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110715/MPCPages.arcLast Updated: 2011-07-20

Alternate Designations
 1997 JY4 = 1998 VO10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-26 17:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin