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172739 (2004 CT23)
Classification: Main-belt Asteroid          SPK-ID: 2172739
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .065771401035017 5.3752e-08  
a 2.787466528726125 2.9268e-08 au
q 2.604130949793593 1.5918e-07 au
i 6.131551822977731 6.351e-06 deg
node 96.35460624572086 5.895e-05 deg
peri 229.7214274662019 7.9237e-05 deg
M 345.5811123069489 5.4702e-05 deg
tp 2459068.583547565999
(2020-Aug-07.08354757)
0.0002586 TDB
period 1699.85907689481
4.65
2.6772e-05
7.33e-08
d
yr
n .2117822617729136 3.3355e-09 deg/d
Q 2.970802107658658 3.1192e-08 au
  Orbit Determination Parameters
   # obs. used (total)      269  
   data-arc span      6032 days (16.51 yr)  
   first obs. used      2002-11-21  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58144  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:53:21  

Additional Information
 Earth MOID = 1.59673 au 
 Jupiter MOID = 2.24386 au 
 T_jup = 3.319 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457127.5 (2015-Apr-15.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06634628249460373 5.3526e-08  
q 2.60123041631307 1.582e-07 au
tp 2457378.184453596495
(2015-Dec-21.68445360)
0.00025255 TDB
node 96.37856796603489 5.8985e-05 deg
peri 231.597435074392 7.9194e-05 deg
i 6.130828299672181 6.3521e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      269  
   data-arc span      6032 days (16.51 yr)  
   first obs. used      2002-11-21  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58144  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:53:21  

Additional Information
 Jupiter MOID = 2.24386 au 
 T_jup = 3.319 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.865002358117087E-15 -8.354903578381146E-15 -6.391716169775469E-13 -2.263811504792928E-15 -5.401287053343791E-14 5.139383719369835E-16
q -8.354903578381146E-15 2.502733950382361E-14 2.875954425199573E-12 9.742775057722235E-15 3.491942282223871E-13 -7.860215976274745E-16
tp -6.391716169775469E-13 2.875954425199573E-12 6.378079053602503E-8 4.339411877979752E-11 1.338951636576497E-8 1.10295964491468E-11
node -2.263811504792928E-15 9.742775057722235E-15 4.339411877979752E-11 3.479180687085822E-9 -3.449614247610114E-9 -7.461454271912385E-11
peri -5.401287053343791E-14 3.491942282223871E-13 1.338951636576497E-8 -3.449614247610114E-9 6.271684073236863E-9 7.654273119778037E-11
i 5.139383719369835E-16 -7.860215976274745E-16 1.10295964491468E-11 -7.461454271912385E-11 7.654273119778037E-11 4.034868243474356E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO436858  

172739 (2004 CT23)          Discovered 2004-Feb-12 by Spacewatch at Kitt Peak
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2108-Nov-15 07:00 00:11 Amphi 0.0471438703815943 0.0470996890849699 0.0471880556454965 3.20027099840328 3.20027096030012 2491309.791761815 10.6928304726937 2304.44286881337 49.1455372299205 17.2010325028265 42502.811461683 T 12 CATAB v2.0f-lin.ifort 2020-Feb-24 16:53:36 2020-Feb-24 16:53

Alternate Designations
 2004 CT23 = 2005 GC144 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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