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 ]  
6424 Ando (1994 EN3)
Classification: Main-belt Asteroid          SPK-ID: 2006424
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1097416478908647 3.2036e-08  
a 3.018198171539235 1.4297e-08 au
q 2.686976130533325 9.6654e-08 au
i 11.0808998409684 4.0843e-06 deg
node 143.9416129308664 1.7836e-05 deg
peri 259.7714941607552 2.5274e-05 deg
M 126.4192155396638 1.8186e-05 deg
tp 2458327.940603499710
(2018-Jul-28.44060350)
9.6044e-05 TDB
period 1915.226112632688
5.24
1.3608e-05
3.726e-08
d
yr
n .1879673619869043 1.3356e-09 deg/d
Q 3.349420212545145 1.5866e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2532  
   data-arc span      16359 days (44.79 yr)  
   first obs. used      1975-09-03  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41955  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:31:06  

Additional Information
 Earth MOID = 1.72288 au 
 Jupiter MOID = 2.08408 au 
 T_jup = 3.210 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457132.5 (2015-Apr-20.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1091410515576909 3.1937e-08  
q 2.689404160116446 9.6315e-08 au
tp 2456416.185847138049
(2013-May-03.68584714)
9.6193e-05 TDB
node 143.9588612332497 1.7834e-05 deg
peri 260.5324594038662 2.5364e-05 deg
i 11.08010414897731 4.0841e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2532  
   data-arc span      16359 days (44.79 yr)  
   first obs. used      1975-09-03  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41955  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:31:06  

Additional Information
 Jupiter MOID = 2.08408 au 
 T_jup = 3.210 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.019949523842708E-15 -3.049354568141526E-15 -4.660033804223562E-13 -1.978697043526004E-15 -1.039182309626538E-13 -4.512100793639444E-16
q -3.049354568141526E-15 9.276616934844E-15 1.353998396071091E-12 5.429240990968431E-15 3.150451907998531E-13 1.554566582300324E-15
tp -4.660033804223562E-13 1.353998396071091E-12 9.253014570261762E-9 -1.352076760516168E-12 1.745688733411206E-9 -2.740132968752613E-12
node -1.978697043526004E-15 5.429240990968431E-15 -1.352076760516168E-12 3.180684795310169E-10 -3.121251489269273E-10 1.006143426417506E-11
peri -1.039182309626538E-13 3.150451907998531E-13 1.745688733411206E-9 -3.121251489269273E-10 6.433366624606126E-10 -1.036792880237117E-11
i -4.512100793639444E-16 1.554566582300324E-15 -2.740132968752613E-12 1.006143426417506E-11 -1.036792880237117E-11 1.667982293051473E-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 12.2   n/a MPO384813  
diameter diameter 11.270 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.206   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6424 Ando (1994 EN3)          Discovered 1994-Mar-14 by Endate, K., Watanabe, K. at Kitami
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1994 EN3 = 1975 RB1 = 1978 ER5 = 1991 RJ21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-12 13:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin