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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1488860185469273 3.7538e-08  
a 2.670991523736158 8.4644e-09 au
q 2.273318230194491 1.025e-07 au
i 11.82524390154671 3.7537e-06 deg
node 331.3707698070215 1.6529e-05 deg
peri 165.1636083247032 2.0825e-05 deg
M 287.605933530841 1.4066e-05 deg
tp 2459521.132589884368
(2021-Nov-02.63258988)		 6.2988e-05 TDB
period 1594.436367344365
4.37		 7.5792e-06
2.075e-08		 d
yr
n .2257851159024946 1.0733e-09 deg/d
Q 3.068664817277825 9.7247e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2679  
   data-arc span      29919 days (81.91 yr)  
   first obs. used      1939-02-22  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38122  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:56:00  

Additional Information
 Earth MOID = 1.2884 au 
 Jupiter MOID = 1.96113 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457232.5 (2015-Jul-29.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1470807231026838 3.7589e-08  
q 2.27973199318187 1.0254e-07 au
tp 2457926.230227565010
(2017-Jun-21.73022756)		 6.0692e-05 TDB
node 331.5006898348003 1.6525e-05 deg
peri 165.0614172268359 2.0926e-05 deg
i 11.82171279379806 3.754e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2679  
   data-arc span      29919 days (81.91 yr)  
   first obs. used      1939-02-22  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38122  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:56:00  

Additional Information
 Jupiter MOID = 1.96113 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.412937046195975E-15 -3.845482011583695E-15 -1.6831762047236E-13 -3.092860750781305E-15 4.165936251459939E-14 -2.002938668244301E-16
q -3.845482011583695E-15 1.051478277969468E-14 6.011259907305203E-13 9.243483962758494E-15 -8.902234700605365E-14 1.106427800191822E-15
tp -1.6831762047236E-13 6.011259907305203E-13 3.683544491099262E-9 -5.337790171961943E-12 7.807752220412353E-10 7.235161881793883E-12
node -3.092860750781305E-15 9.243483962758494E-15 -5.337790171961943E-12 2.730803054188295E-10 -2.683565667275136E-10 1.25074520709787E-11
peri 4.165936251459939E-14 -8.902234700605365E-14 7.807752220412353E-10 -2.683565667275136E-10 4.37907572733052E-10 -1.076300088561853E-11
i -2.002938668244301E-16 1.106427800191822E-15 7.235161881793883E-12 1.25074520709787E-11 -1.076300088561853E-11 1.409230384990087E-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 11.56   n/a E2021B10  
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. 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:
[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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1915-Feb-25 05:43 00:01 Jupiter 1.96440726053218 1.96440693059884 1.96440759046978 3.92574389174735 3.81432766555062 2420553.738078577 1.2965675482506 263.738737179213 10.8338806859757 87.5948821881609 4178526.61670893 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:56:07 2021-Feb-24 00:56
1998-Jan-16 13:30 < 00:01 Jupiter 1.96190690943572 1.96190660576799 1.96190721310625 3.91995886694954 3.80822910403133 2450830.062699139 0.250531058868907 221.130196372939 9.68874306661436 87.429325571585 4165987.05657897 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:56:07 2021-Feb-24 00:56
2080-Dec-08 23:40 < 00:01 Jupiter 1.96123460695773 1.96123431085061 1.96123490306696 3.91141335318684 3.79939334848526 2481107.486358883 0.852294209192018 193.611158693368 9.24390426551784 87.055881082965 4251931.84699829 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:56:07 2021-Feb-24 00:56
2163-Nov-02 04:17 00:02 Jupiter 1.98098021577588 1.98097975679357 1.98098067476404 3.92539393149061 3.81491317991487 2511384.678373237 1.9158378442212 222.191851534424 11.1076886579381 84.997237427249 4061047.05565092 T 32 CATAB v2.0f-lin.ifort 2021-Feb-24 00:56:07 2021-Feb-24 00:56

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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