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19347 (1997 CH9)
Classification: Main-belt Asteroid          SPK-ID: 2019347
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1729255148840869 4.8573e-08  
a 2.786093516749776 1.2567e-08 au
q 2.304306860850604 1.3508e-07 au
i 5.34256419692879 6.5943e-06 deg
node 339.0322804932056 4.0235e-05 deg
peri 49.0607303760419 4.4501e-05 deg
M 107.1746395094446 1.6885e-05 deg
tp 2458494.813345947931
(2019-Jan-11.31334595)
7.9411e-05 TDB
period 1698.603291711584
4.65
1.1492e-05
3.146e-08
d
yr
n .2119388333677658 1.4339e-09 deg/d
Q 3.267880172648947 1.474e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1358  
   data-arc span      14058 days (38.49 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51528  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:00:13  

Additional Information
 Earth MOID = 1.31296 au 
 Jupiter MOID = 2.21752 au 
 T_jup = 3.303 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457128.5 (2015-Apr-16.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1697075687953547 4.8286e-08  
q 2.315185313701926 1.3363e-07 au
tp 2456792.086686100569
(2014-May-14.58668610)
8.281e-05 TDB
node 339.1272204593679 4.0124e-05 deg
peri 48.57019903717646 4.4643e-05 deg
i 5.350222939744717 6.5972e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1358  
   data-arc span      14058 days (38.49 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51528  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:00:13  

Additional Information
 Jupiter MOID = 2.21752 au 
 T_jup = 3.303 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.331503249853982E-15 -6.432907821698322E-15 -2.376253060942069E-12 9.588548805376979E-15 -5.965793549195882E-13 -2.094077644850251E-17
q -6.432907821698322E-15 1.78579059808209E-14 6.517146478407986E-12 -2.664268940039496E-14 1.642875836741794E-12 -3.544654551539318E-17
tp -2.376253060942069E-12 6.517146478407986E-12 6.857502401154242E-9 -2.580899720290371E-11 1.627500427418128E-9 -8.106279256415171E-13
node 9.588548805376979E-15 -2.664268940039496E-14 -2.580899720290371E-11 1.609968538477698E-9 -1.608561259251102E-9 -8.228401057465219E-12
peri -5.965793549195882E-13 1.642875836741794E-12 1.627500427418128E-9 -1.608561259251102E-9 1.993027532972938E-9 8.001730655974682E-12
i -2.094077644850251E-17 -3.544654551539318E-17 -8.106279256415171E-13 -8.228401057465219E-12 8.001730655974682E-12 4.352251013169866E-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 14.3   n/a MPO365484  
diameter diameter 6.404 km 0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19347 (1997 CH9)          Discovered 1997-Feb-01 by Spacewatch at Kitt Peak
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1997 CH9 = 1981 UR28 = 1990 QR12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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