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 ]  
201022 (2002 CT261)
Classification: Main-belt Asteroid          SPK-ID: 2201022
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]
Orbit Diagram
[ switch to new HTML5 viewer ]

Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1494058294374456 6.0586e-08  
a 2.424922726661792 1.722e-08 au
q 2.062625135363175 1.5173e-07 au
i 3.285616080143409 5.6816e-06 deg
node 84.58399587208874 0.00011469 deg
peri 92.72691761651393 0.00011655 deg
M 283.5699171490617 2.4612e-05 deg
tp 2459293.324298913629
(2021-Mar-19.82429891)
9.6149e-05 TDB
period 1379.257272486551
3.78
1.4691e-05
4.022e-08
d
yr
n .2610100430001613 2.7802e-09 deg/d
Q 2.787220317960409 1.9792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      7965 days (21.81 yr)  
   first obs. used      1998-01-05  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56822  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 22:56:37  

Additional Information
 Earth MOID = 1.06973 au 
 Jupiter MOID = 2.1768 au 
 T_jup = 3.494 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457315.5 (2015-Oct-20.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1493321682334685 6.073e-08  
q 2.062801559362686 1.5205e-07 au
tp 2457915.337602290184
(2017-Jun-10.83760229)
8.8025e-05 TDB
node 84.59909563284241 0.00011476 deg
peri 92.95469728899214 0.00011662 deg
i 3.284993844288331 5.6794e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      7965 days (21.81 yr)  
   first obs. used      1998-01-05  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56822  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 22:56:37  

Additional Information
 Jupiter MOID = 2.1768 au 
 T_jup = 3.494 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.688089847998749E-15 -9.194395053141934E-15 -9.914183169855665E-13 3.78468779071866E-14 -1.777772852697182E-13 6.248079115052437E-16
q -9.194395053141934E-15 2.311869763312755E-14 3.035012318571397E-12 -9.486829127314738E-14 5.558132498599169E-13 -1.112759395244966E-15
tp -9.914183169855665E-13 3.035012318571397E-12 7.748321908884096E-9 -2.862868099629065E-11 1.870916900932869E-9 3.627369487831835E-12
node 3.78468779071866E-14 -9.486829127314738E-14 -2.862868099629065E-11 1.31694569421609E-8 -1.315298473103869E-8 -5.786094812011101E-11
peri -1.777772852697182E-13 5.558132498599169E-13 1.870916900932869E-9 -1.315298473103869E-8 1.359945612094192E-8 5.863658086422134E-11
i 6.248079115052437E-16 -1.112759395244966E-15 3.627369487831835E-12 -5.786094812011101E-11 5.863658086422134E-11 3.22552729328339E-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 17.1   n/a MPO454422  

201022 (2002 CT261)          Discovered 2002-Feb-07 by NEAT at Haleakala
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-04 00:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin