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19244 (1994 CX12)
Classification: Main-belt Asteroid          SPK-ID: 2019244
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06430209561606387 3.4315e-08  
a 2.375417710015575 7.6037e-09 au
q 2.222673373298062 7.9719e-08 au
i 4.017611472029389 3.6887e-06 deg
node 39.89996430054505 4.0057e-05 deg
peri 147.9649782885571 4.7175e-05 deg
M 90.39489380664031 2.3671e-05 deg
tp 2458864.723877152041
(2020-Jan-16.22387715)
8.8229e-05 TDB
period 1337.237084252049
3.66
6.4207e-06
1.758e-08
d
yr
n .2692117981467417 1.2926e-09 deg/d
Q 2.528162046733088 8.0926e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2420  
   data-arc span      16227 days (44.43 yr)  
   first obs. used      1976-04-04  
   last obs. used      2020-09-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45609  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:49:35  

Additional Information
 Earth MOID = 1.22315 au 
 Jupiter MOID = 2.42616 au 
 T_jup = 3.536 
[ 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 14.06   n/a E2021B10  
diameter diameter 6.062 km 0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.27 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.121   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19244 (1994 CX12)          Discovered 1994-Feb-07 by Elst, E. W. at La Silla
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 CX12 = 1976 GK7 = 1987 HR1 = 1998 HG52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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