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 ]  
14891 (1991 VY4)
Classification: Main-belt Asteroid          SPK-ID: 2014891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1506365803803217 3.2802e-08  
a 2.459895674096937 7.0151e-09 au
q 2.089345401658628 8.1103e-08 au
i 3.732387628867729 2.6527e-06 deg
node 98.40422540732823 7.53e-05 deg
peri 334.0089533711212 7.712e-05 deg
M 177.5569523138018 1.6708e-05 deg
tp 2458505.461853325575
(2019-Jan-21.96185333)
6.4694e-05 TDB
period 1409.202678589473
3.86
6.0281e-06
1.65e-08
d
yr
n .2554636075204869 1.0928e-09 deg/d
Q 2.830445946535245 8.0718e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2215  
   data-arc span      10462 days (28.64 yr)  
   first obs. used      1991-11-04  
   last obs. used      2020-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48344  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:41:30  

Additional Information
 Earth MOID = 1.10441 au 
 Jupiter MOID = 2.42807 au 
 T_jup = 3.472 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.23   n/a E2021B10  
diameter diameter 8.026 km 0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14891 (1991 VY4)          Discovered 1991-Nov-05 by Otomo, S. at Kiyosato
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 VY4 = 1997 GC42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-13 16:53 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin