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275528 (1998 CM)
Classification: Main-belt Asteroid          SPK-ID: 2275528
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .286035851872692 1.9561e-07  
a 2.534570444886034 1.9209e-08 au
q 1.809592428551709 5.0145e-07 au
i 6.473386047249476 5.1109e-06 deg
node 343.629249384994 4.0285e-05 deg
peri 34.59399601279332 5.333e-05 deg
M 276.4035504206747 5.0251e-05 deg
tp 2459342.747518993438
(2021-May-08.24751899)
0.00020459 TDB
period 1473.855737386594
4.04
1.6755e-05
4.587e-08
d
yr
n .2442572843922591 2.7768e-09 deg/d
Q 3.259548461220358 2.4704e-08 au
  Orbit Determination Parameters
   # obs. used (total)      698  
   data-arc span      8182 days (22.40 yr)  
   first obs. used      1998-02-03  
   last obs. used      2020-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51682  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 21:30:54  

Additional Information
 Earth MOID = .815422 au 
 Jupiter MOID = 2.23173 au 
 T_jup = 3.382 
[ 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 15.1   n/a MPO455045  
diameter diameter 2.846 km 0.489 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.239   0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

275528 (1998 CM)          Discovered 1998-Feb-03 by Tichy, M., Moravec, Z. at Klet
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Alternate Designations
 1998 CM = 2002 AA139 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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