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 ]  
153P/Ikeya-Zhang
Classification: Comet          SPK-ID: 1000374
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ 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 2452402.5 (2002-May-08.0) TDB
Reference: JPL 74 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9900806570176691 9.632e-07  
a 51.1193221677278 0.0049627 au
q .5070700896059622 3.007e-07 au
i 28.1209574068563 2.9324e-05 deg
node 93.36945661875394 3.4808e-05 deg
peri 34.66817865742473 5.1723e-05 deg
M .134886581151805 1.9699e-05 deg
tp 2452352.480159443828
(2002-Mar-18.98015944)
2.2685e-05 TDB
period 133498.3987766448
365.50
19.44
0.05322
d
yr
n .002696661557733837 3.9269e-07 deg/d
Q 101.7315742458496 0.0098762 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 7.054283011393982E-9 3.525E-10
A2 [EST] 1.667417038203938E-9 1.685E-10
  Orbit Determination Parameters
   # obs. used (total)      1893  
   data-arc span      403 days (1.10 yr)  
   first obs. used      2001-08-25  
   last obs. used      2002-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .74612  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2020-Jun-17 10:40:41  

Additional Information
 Earth MOID = .331905 au 
 Jupiter MOID = .0114955 au 
 T_jup = 0.879 
[ hide covariance matrix ]
Orbit Covariance (8×8)
  e q tp node peri i A1 A2
e 9.277605596720084E-13 -1.203587628317446E-14 2.011117611147993E-11 -1.712140714078207E-11 3.500945624368787E-11 1.987508336178974E-11 1.46402004783391E-16 1.134005242267547E-16
q -1.203587628317446E-14 9.042031561764886E-14 -1.604016321527276E-12 5.97407223936465E-13 7.228484652124623E-12 -3.593702530537541E-13 -7.29638828066786E-17 -1.632795084287882E-17
tp 2.011117611147993E-11 -1.604016321527276E-12 5.146315811182714E-10 -3.524296630736324E-10 6.642476866407415E-10 3.931746958013303E-10 4.749888200364183E-15 2.96543530517526E-15
node -1.712140714078207E-11 5.97407223936465E-13 -3.524296630736324E-10 1.211592475427889E-9 -1.378154726242612E-9 -9.287471855610239E-10 -9.060358745894488E-16 -1.048373348424741E-15
peri 3.500945624368787E-11 7.228484652124623E-12 6.642476866407415E-10 -1.378154726242612E-9 2.67525961780503E-9 1.204212797373003E-9 -2.207016663299689E-15 2.154927517329284E-15
i 1.987508336178974E-11 -3.593702530537541E-13 3.931746958013303E-10 -9.287471855610239E-10 1.204212797373003E-9 8.598802335113716E-10 1.817539163880435E-15 1.687434947950649E-15
A1 1.46402004783391E-16 -7.29638828066786E-17 4.749888200364183E-15 -9.060358745894488E-16 -2.207016663299689E-15 1.817539163880435E-15 1.242373450408759E-19 5.199065304790538E-20
A2 1.134005242267547E-16 -1.632795084287882E-17 2.96543530517526E-15 -1.048373348424741E-15 2.154927517329284E-15 1.687434947950649E-15 5.199065304790538E-20 2.839234630942279E-20

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 4.0   n/a ICQ 2004 Handbook  
comet total magnitude slope K1 15.0   n/a ICQ 2004 Handbook  

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2002.2   153P/2002 C1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-25 03:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin