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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
66342 (1999 JA68)
Classification: Main-belt Asteroid          SPK-ID: 2066342
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1880687928852969 3.6067e-08  
a 2.302722618223741 8.1317e-09 au
q 1.869652355064731 8.3556e-08 au
i 8.168241237829434 4.1354e-06 deg
node 73.74982720725771 3.2794e-05 deg
peri 190.7031177154432 3.4978e-05 deg
M 336.5906076658482 1.3495e-05 deg
tp 2459083.494345925153
(2020-Aug-21.99434593)
4.7982e-05 TDB
period 1276.323798011036
3.49
6.7607e-06
1.851e-08
d
yr
n .2820600858191372 1.4941e-09 deg/d
Q 2.73579288138275 9.661e-09 au
  Orbit Determination Parameters
   # obs. used (total)      773  
   data-arc span      7686 days (21.04 yr)  
   first obs. used      1999-04-12  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53758  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 12:59:20  

Additional Information
 Earth MOID = .854699 au 
 Jupiter MOID = 2.34243 au 
 T_jup = 3.553 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456957.5 (2014-Oct-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .18855861184435 3.6019e-08  
q 1.868233175196167 8.3477e-08 au
tp 2456530.336139874147
(2013-Aug-25.83613987)
4.5227e-05 TDB
node 73.8018671113383 3.2792e-05 deg
peri 190.5871738156421 3.496e-05 deg
i 8.169266835217387 4.135e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      773  
   data-arc span      7686 days (21.04 yr)  
   first obs. used      1999-04-12  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53758  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 12:59:20  

Additional Information
 Jupiter MOID = 2.34243 au 
 T_jup = 3.553 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.297361125842665E-15 -2.997260135589622E-15 -6.039878736460693E-13 -2.545531281418883E-14 -1.137357100122322E-13 -1.267046438146982E-15
q -2.997260135589622E-15 6.968349093950528E-15 1.402717633070105E-12 5.867165944609895E-14 2.681588113288711E-13 3.077694683272031E-15
tp -6.039878736460693E-13 1.402717633070105E-12 2.045468255628994E-9 2.61350844632809E-11 5.69195158910511E-10 2.727836899119576E-12
node -2.545531281418883E-14 5.867165944609895E-14 2.61350844632809E-11 1.075310512638566E-9 -1.057019135155331E-9 -5.008942927071696E-11
peri -1.137357100122322E-13 2.681588113288711E-13 5.69195158910511E-10 -1.057019135155331E-9 1.222232718787349E-9 5.039111493745053E-11
i -1.267046438146982E-15 3.077694683272031E-15 2.727836899119576E-12 -5.008942927071696E-11 5.039111493745053E-11 1.709816384288484E-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 15.9   n/a MPO468589  
diameter diameter 2.388 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.123   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66342 (1999 JA68)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-29 16:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin