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 ]  
4921 Volonte (1980 SJ)
Classification: Main-belt Asteroid          SPK-ID: 2004921
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1429788449661296 4.325e-08  
a 2.411737881196346 8.1896e-09 au
q 2.066910384581832 1.0321e-07 au
i 5.208286946797456 4.1328e-06 deg
node 233.1338175907576 3.3467e-05 deg
peri 145.6202024282875 3.5231e-05 deg
M 199.3139643834452 1.3418e-05 deg
tp 2459611.117461742355
(2022-Jan-31.61746174)
5.2748e-05 TDB
period 1368.023583280191
3.75
6.9682e-06
1.908e-08
d
yr
n .2631533581729686 1.3404e-09 deg/d
Q 2.75656537781086 9.3606e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2361  
   data-arc span      31003 days (84.88 yr)  
   first obs. used      1935-08-31  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46562  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:47:35  

Additional Information
 Earth MOID = 1.07185 au 
 Jupiter MOID = 2.70917 au 
 T_jup = 3.500 
[ show covariance matrix ]

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 13.5   n/a MPO431554  
diameter diameter 5.084 km 0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.280   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4921 Volonte (1980 SJ)          Discovered 1980-Sep-29 by Vavrova, Z. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 SJ = 1935 QM = 1954 UB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-27 07:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin