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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3602729581328779 5.6525e-08  
a 2.580198097265662 1.691e-08 au
q 1.650622496194939 1.5135e-07 au
i 27.87787781255535 7.4332e-06 deg
node 315.2620980954416 1.31e-05 deg
peri 284.9175167208608 1.635e-05 deg
M 350.8936017585388 9.9125e-06 deg
tp 2459038.793242413009
(2020-Jul-08.29324241)
4.1756e-05 TDB
period 1513.833120752187
4.14
1.4882e-05
4.074e-08
d
yr
n .2378069253902469 2.3378e-09 deg/d
Q 3.509773698336385 2.3002e-08 au
  Orbit Determination Parameters
   # obs. used (total)      601  
   data-arc span      10668 days (29.21 yr)  
   first obs. used      1991-02-12  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53509  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:20:49  

Additional Information
 Earth MOID = .823207 au 
 Jupiter MOID = 2.34343 au 
 T_jup = 3.178 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457185.5 (2015-Jun-12.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3605289738242292 5.6459e-08  
q 1.650357536752608 1.5135e-07 au
tp 2457523.748547862205
(2016-May-15.24854786)
4.1314e-05 TDB
node 315.3060034407357 1.3097e-05 deg
peri 284.7825552976523 1.6339e-05 deg
i 27.88066891469926 7.4334e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      601  
   data-arc span      10668 days (29.21 yr)  
   first obs. used      1991-02-12  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53509  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:20:49  

Additional Information
 Jupiter MOID = 2.34343 au 
 T_jup = 3.178 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.187654366614387E-15 -8.528499668562695E-15 -3.142541771056668E-13 -2.881619521230536E-15 4.187346854039219E-15 5.00252979130826E-16
q -8.528499668562695E-15 2.290702717074706E-14 7.468023200196112E-13 8.103119607697362E-15 -4.340565013776394E-14 9.75588785648733E-17
tp -3.142541771056668E-13 7.468023200196112E-13 1.706824288780022E-9 1.116731284876161E-11 4.316918590516576E-10 -1.768979674375406E-12
node -2.881619521230536E-15 8.103119607697362E-15 1.116731284876161E-11 1.715364595921367E-10 -1.476424245227598E-10 1.896550947080626E-11
peri 4.187346854039219E-15 -4.340565013776394E-14 4.316918590516576E-10 -1.476424245227598E-10 2.669731931210942E-10 -1.766805866286659E-11
i 5.00252979130826E-16 9.75588785648733E-17 -1.768979674375406E-12 1.896550947080626E-11 -1.766805866286659E-11 5.525539500693792E-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 14.5   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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