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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3602968290992534 6.3358e-08  
a 2.58078997271869 2.0833e-08 au
q 1.650939528976997 1.6549e-07 au
i 27.87428878736641 8.0656e-06 deg
node 315.2631666810902 1.544e-05 deg
peri 284.8764027998694 1.8663e-05 deg
M 255.8258205704439 1.579e-05 deg
tp 2459038.712748924199
(2020-Jul-08.21274892)
6.926e-05 TDB
period 1514.354041246742
4.15
1.8337e-05
5.02e-08
d
yr
n .2377251225239364 2.8785e-09 deg/d
Q 3.510640416460383 2.8339e-08 au
  Orbit Determination Parameters
   # obs. used (total)      453  
   data-arc span      10525 days (28.82 yr)  
   first obs. used      1991-02-12  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57453  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 05:00:06  

Additional Information
 Earth MOID = .823286 au 
 Jupiter MOID = 2.34166 au 
 T_jup = 3.178 
[ 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 14.5   n/a MPO432080  

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

[ show close-approach data ]
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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