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 ]  
21291 (1996 VG6)
Classification: Main-belt Asteroid          SPK-ID: 2021291
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04601317075862028 3.9204e-08  
a 2.342519393478248 9.1266e-09 au
q 2.234732648620753 8.9775e-08 au
i 7.30409244570587 3.9461e-06 deg
node 65.6291900498974 3.2673e-05 deg
peri 91.2824979736265 5.553e-05 deg
M 228.7973517106509 4.6493e-05 deg
tp 2459873.769102560102
(2022-Oct-21.26910256)
0.00017005 TDB
period 1309.553421076674
3.59
7.6532e-06
2.095e-08
d
yr
n .2749028746792317 1.6066e-09 deg/d
Q 2.450306138335741 9.5466e-09 au
  Orbit Determination Parameters
   # obs. used (total)      934  
   data-arc span      15593 days (42.69 yr)  
   first obs. used      1978-11-29  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56672  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:41:37  

Additional Information
 Earth MOID = 1.25805 au 
 Jupiter MOID = 2.5369 au 
 T_jup = 3.551 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457273.5 (2015-Sep-08.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04578705186008252 3.8842e-08  
q 2.236284782967418 8.8999e-08 au
tp 2457249.475802302943
(2015-Aug-14.97580230)
0.00016786 TDB
node 65.7054418489425 3.2637e-05 deg
peri 90.09794667885534 5.6066e-05 deg
i 7.307417803384965 3.9473e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      934  
   data-arc span      15593 days (42.69 yr)  
   first obs. used      1978-11-29  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56672  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:41:37  

Additional Information
 Jupiter MOID = 2.5369 au 
 T_jup = 3.551 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.508738870338706E-15 -3.441611422986535E-15 1.931188731099429E-12 6.237241152090683E-15 5.169295262007651E-13 1.685057164071349E-16
q -3.441611422986535E-15 7.920824684562927E-15 -4.127814875092832E-12 -1.369449646114935E-14 -1.105887980537369E-12 -3.360756697269857E-16
tp 1.931188731099429E-12 -4.127814875092832E-12 2.817729714723816E-8 -7.3506968817659E-12 7.670543664923388E-9 2.340731471397244E-12
node 6.237241152090683E-15 -1.369449646114935E-14 -7.3506968817659E-12 1.065185754723266E-9 -1.058135976914546E-9 -3.019642951526541E-11
peri 5.169295262007651E-13 -1.105887980537369E-12 7.670543664923388E-9 -1.058135976914546E-9 3.143444926064158E-9 3.062087458466248E-11
i 1.685057164071349E-16 -3.360756697269857E-16 2.340731471397244E-12 -3.019642951526541E-11 3.062087458466248E-11 1.558136741681701E-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 15.64   n/a E2021B10  

21291 (1996 VG6)          Discovered 1996-Nov-12 by Boattini, A., Pedichini, F. at Campo Imperatore
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1996 VG6 = 1978 WF4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-16 16:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin