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 ]  
15925 Rokycany (1997 VM6)
Classification: Main-belt Asteroid          SPK-ID: 2015925
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1226349581278701 1.8811e-08  
a 2.592748663273521 1.0608e-08 au
q 2.274787039516882 4.8576e-08 au
i 12.37252221048028 4.525e-07 deg
node 284.4029760829748 4.6457e-06 deg
peri 160.6917727355608 1.2736e-05 deg
M 263.6741391800853 1.2656e-05 deg
tp 2459804.518122809842
(2022-Aug-13.01812281)
5.4909e-05 TDB
period 1524.891892595216
4.17
9.3581e-06
2.562e-08
d
yr
n .2360823096693861 1.4488e-09 deg/d
Q 2.91071028703016 1.1908e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1947  
   data-arc span      24439 days (66.91 yr)  
   first obs. used      1954-07-28  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42972  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:58:02  

Additional Information
 Earth MOID = 1.29475 au 
 Jupiter MOID = 2.28896 au 
 T_jup = 3.375 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457034.5 (2015-Jan-12.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1253089988375352 1.8952e-08  
q 2.266033871055121 4.9255e-08 au
tp 2456757.385278376424
(2014-Apr-09.88527838)
4.6584e-05 TDB
node 284.458462118183 4.6366e-06 deg
peri 160.6104932258254 1.2457e-05 deg
i 12.3889246494661 4.5115e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      1947  
   data-arc span      24439 days (66.91 yr)  
   first obs. used      1954-07-28  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42972  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:58:02  

Additional Information
 Jupiter MOID = 2.28896 au 
 T_jup = 3.375 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.591680831813313E-16 -9.179110261843804E-16 2.545089405077717E-13 1.835438210775842E-14 2.103305101739223E-15 8.14213795228749E-16
q -9.179110261843804E-16 2.426073201099739E-15 -5.656110860301601E-13 -4.659666102885565E-14 1.851767095967078E-14 -2.225183157024597E-15
tp 2.545089405077717E-13 -5.656110860301601E-13 2.170094016497219E-9 -3.348293198347121E-11 5.195093061705094E-10 -7.666647550288345E-12
node 1.835438210775842E-14 -4.659666102885565E-14 -3.348293198347121E-11 2.149793632031427E-11 -3.165314382935212E-11 1.240511467607826E-12
peri 2.103305101739223E-15 1.851767095967078E-14 5.195093061705094E-10 -3.165314382935212E-11 1.55164530658777E-10 -3.167285320367012E-12
i 8.14213795228749E-16 -2.225183157024597E-15 -7.666647550288345E-12 1.240511467607826E-12 -3.167285320367012E-12 2.035395542530243E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.09   n/a MPO614063  
diameter diameter 6.435 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.011 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Aznar, A.M.; Licandro, J.; Serra-Ricart, M. (2019) Minor Planet Bull. 46, 395-399.]
geometric albedo albedo 0.269   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

15925 Rokycany           Discovered 1997 Nov. 10 by L. Šarounová at Ondřejov.
Rokycany is a town in West Bohemia about which the first written evidence dates from 1110. In 1947 a public observatory was founded there, concentrating on occultation observations, work with youth, teachers and amateur telescope making.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100527/MPCPages.arcLast Updated: 2010-12-06

Alternate Designations
 1997 VM6 = 1988 VE9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-03 10:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin