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52297 (1991 CH2)
Classification: Mars-crossing Asteroid          SPK-ID: 2052297
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3604966833104367 5.6117e-08  
a 2.58089680858802 1.6836e-08 au
q 1.650492069125548 1.504e-07 au
i 27.87950467693915 7.1251e-06 deg
node 315.259969732006 1.3073e-05 deg
peri 284.9160522945047 1.6165e-05 deg
M 38.43790203052511 9.2941e-06 deg
tp 2459038.799425641566
(2020-Jul-08.29942564)
3.8829e-05 TDB
period 1514.448075829097
4.15
1.4819e-05
4.057e-08
d
yr
n .237710361778442 2.326e-09 deg/d
Q 3.511301548050492 2.2905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      664  
   data-arc span      10769 days (29.48 yr)  
   first obs. used      1991-02-12  
   last obs. used      2020-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51453  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:44:10  

Additional Information
 Earth MOID = .821714 au 
 Jupiter MOID = 2.34213 au 
 T_jup = 3.177 
[ show covariance matrix ]

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 14.55   n/a E2021B10  

52297 (1991 CH2)          Discovered 1991-Feb-12 by McNaught, R. H. at Siding Spring
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 CH2 = 1999 CW10 = 2000 SZ271 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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