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1510 Charlois (1939 DC)
Classification: Main-belt Asteroid          SPK-ID: 2001510
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1488274287498419 4.7285e-08  
a 2.670606138385123 9.967e-09 au
q 2.273146693605721 1.2544e-07 au
i 11.82542206483364 5.3727e-06 deg
node 331.3718754703791 1.7178e-05 deg
peri 165.2210413860165 2.1394e-05 deg
M 242.3737077448347 1.4755e-05 deg
tp 2459521.352913845063
(2021-Nov-02.85291385)
6.6879e-05 TDB
period 1594.091298716326
4.36
8.924e-06
2.443e-08
d
yr
n .225833990995307 1.2643e-09 deg/d
Q 3.068065583164525 1.145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2174  
   data-arc span      29749 days (81.45 yr)  
   first obs. used      1939-02-22  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41214  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:35:56  

Additional Information
 Earth MOID = 1.28831 au 
 Jupiter MOID = 1.96223 au 
 T_jup = 3.335 
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Orbital Elements at Epoch 2456497.5 (2013-Jul-24.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1471023433852002 4.7298e-08  
q 2.278672598920481 1.2526e-07 au
tp 2456329.380402018323
(2013-Feb-05.88040202)
5.9954e-05 TDB
node 331.5131553842958 1.7182e-05 deg
peri 164.8452188290575 2.1506e-05 deg
i 11.82156136061039 5.3708e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2174  
   data-arc span      29749 days (81.45 yr)  
   first obs. used      1939-02-22  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41214  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:35:56  

Additional Information
 Jupiter MOID = 1.96223 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.237126811976177E-15 -5.910869582927314E-15 2.817089184880328E-13 -5.907632086692573E-15 1.068280587275325E-13 -8.566619583202383E-16
q -5.910869582927314E-15 1.568920839471581E-14 -5.946050468521554E-13 1.653460248978029E-14 -2.525230843719675E-13 2.622192762156457E-15
tp 2.817089184880328E-13 -5.946050468521554E-13 3.594461525288731E-9 -3.435071488471427E-12 7.834586106869953E-10 1.903096901604034E-12
node -5.907632086692573E-15 1.653460248978029E-14 -3.435071488471427E-12 2.952053001641393E-10 -2.891652023717691E-10 -3.747069227091685E-12
peri 1.068280587275325E-13 -2.525230843719675E-13 7.834586106869953E-10 -2.891652023717691E-10 4.6252303952082E-10 4.02990789280457E-12
i -8.566619583202383E-16 2.622192762156457E-15 1.903096901604034E-12 -3.747069227091685E-12 4.02990789280457E-12 2.884553423046382E-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 11.5   n/a MPO265964  
diameter diameter 24.507 km 0.345 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.866 h n/a LCDB (Rev. 2019-August); 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:
[Behrend, R. (2013) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.118   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1510 Charlois (1939 DC)          Discovered 1939-Feb-22 by Patry, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1939 DC = 1959 WE = 1963 UB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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