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120552 (1995 CY2)
Classification: Main-belt Asteroid          SPK-ID: 2120552
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06236257811272004 4.3872e-08  
a 3.042944452967005 2.1264e-08 au
q 2.853178591826182 1.4173e-07 au
i 3.419303527489087 4.7898e-06 deg
node 171.8831480838384 6.7405e-05 deg
peri 326.3331700494915 7.7219e-05 deg
M 308.4599380522392 3.8076e-05 deg
tp 2459478.075991187916
(2021-Sep-20.57599119)
0.00020594 TDB
period 1938.82880717009
5.31
2.0323e-05
5.564e-08
d
yr
n .1856791062050781 1.9463e-09 deg/d
Q 3.232710314107827 2.2591e-08 au
  Orbit Determination Parameters
   # obs. used (total)      726  
   data-arc span      9507 days (26.03 yr)  
   first obs. used      1995-02-01  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54549  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:07:04  

Additional Information
 Earth MOID = 1.86704 au 
 Jupiter MOID = 1.77294 au 
 T_jup = 3.234 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457281.5 (2015-Sep-16.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06007129280878072 4.4751e-08  
q 2.859285508437657 1.4396e-07 au
tp 2457551.223505247839
(2016-Jun-11.72350525)
0.00020561 TDB
node 171.9317656178582 6.7331e-05 deg
peri 328.5837336186307 7.755e-05 deg
i 3.419536668796088 4.7945e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      726  
   data-arc span      9507 days (26.03 yr)  
   first obs. used      1995-02-01  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54549  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:07:04  

Additional Information
 Jupiter MOID = 1.77294 au 
 T_jup = 3.234 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.002613471827352E-15 -6.387664690204319E-15 1.466461775766823E-12 -8.439610939076221E-15 3.499813707855924E-13 -9.441772576159123E-16
q -6.387664690204319E-15 2.072582520329406E-14 -3.614278526792599E-12 3.011814598085555E-14 -9.314779182998021E-13 3.634152277682466E-15
tp 1.466461775766823E-12 -3.614278526792599E-12 4.22758223251346E-8 8.140967861007123E-12 7.921671743531837E-9 4.705093592444145E-12
node -8.439610939076221E-15 3.011814598085555E-14 8.140967861007123E-12 4.533463074191571E-9 -4.52387489715229E-9 3.258784214726392E-11
peri 3.499813707855924E-13 -9.314779182998021E-13 7.921671743531837E-9 -4.52387489715229E-9 6.014016681489445E-9 -3.170462463889561E-11
i -9.441772576159123E-16 3.634152277682466E-15 4.705093592444145E-12 3.258784214726392E-11 -3.170462463889561E-11 2.298676700414124E-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 14.94   n/a MPCxxxxx  

120552 (1995 CY2)          Discovered 1995-Feb-01 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1995 CY2 = 2001 GH4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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