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 ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


[ revert to old Java-based viewer ]

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-Jul-09 02:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin