Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
2364 Seillier (1978 GD)
Classification: Main-belt Asteroid          SPK-ID: 2002364
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1401969557837168 4.0985e-08  
a 3.173089650441447 1.8247e-08 au
q 2.728232141020738 1.3095e-07 au
i 10.70850543471669 4.3923e-06 deg
node 42.80146194314509 1.8641e-05 deg
peri 167.8477277520431 2.2936e-05 deg
M 193.4512892213017 1.5992e-05 deg
tp 2460155.626105104257
(2023-Jul-30.12610510)
9.6162e-05 TDB
period 2064.533530340066
5.65
1.7809e-05
4.876e-08
d
yr
n .1743735302476301 1.5041e-09 deg/d
Q 3.617947159862156 2.0806e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2803  
   data-arc span      25341 days (69.38 yr)  
   first obs. used      1951-09-01  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41322  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:02:25  

Additional Information
 Earth MOID = 1.72239 au 
 Jupiter MOID = 1.34858 au 
 T_jup = 3.159 
[ 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 11.41   n/a E2021B10  
diameter diameter 19.629 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.284 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:
[Casalnuovo, G.B. (2015) Minor Planet Bull. 42, 139-141.]
geometric albedo albedo 0.103   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2364 Seillier (1978 GD)          Discovered 1978-Apr-14 by Debehogne, H. at La Silla
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
1941-Aug-30 13:35 00:03 Jupiter 1.69429385546688 1.69429179052941 1.69429592042515 2.93209354559114 2.75632353326138 2430237.065643671 2.64185725198909 326.503159700319 8.68986275014738 -72.8486561959454 3002064.71139708 T 39 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:33 2021-Feb-24 01:02
1952-Aug-12 17:14 00:02 Jupiter 1.4209944084433 1.42099366212618 1.42099515478045 2.78920418207219 2.56661359801882 2434237.217741550 1.84666827840851 307.938378557172 2.28724591686003 -83.5636363573421 2217773.95886397 T 39 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:33 2021-Feb-24 01:02
1963-Aug-17 10:38 00:01 Jupiter 1.45943242641092 1.45943173241181 1.45943312042737 2.56531927739884 2.32811231172834 2438258.942894220 1.44664788018255 416.50116223677 22.8133417669913 -85.0199091214929 2317313.8236122 T 39 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:33 2021-Feb-24 01:02
1974-Jun-26 19:27 00:01 Jupiter 1.77321676345991 1.77321583433787 1.77321769258397 2.38830871468113 2.17914367700719 2442225.310169456 1.26017175458568 142.059351733057 25.7742838884768 -78.61017625601 2578371.86291302 T 39 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:33 2021-Feb-24 01:02
2072-Aug-31 07:07 00:02 Jupiter 1.85663191189312 1.85663074470018 1.8566330790886 2.85442172954927 2.68985023462103 2478085.796292692 1.66006358332377 129.383194367582 7.782228531729 -65.6977738039552 3630026.10005216 T 39 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:33 2021-Feb-24 01:02
2083-Jul-21 22:10 00:02 Jupiter 1.50261056737026 1.50260961765368 1.50261151710769 2.76716627401499 2.55534888777335 2482062.423859839 1.83011660183316 313.247932540016 4.6652309865623 -81.1378678286867 2503938.74323121 T 39 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:33 2021-Feb-24 01:02
2094-Jul-27 18:51 00:02 Jupiter 1.40375996711327 1.40375940374424 1.40376053048358 2.74506277545703 2.51566662010313 2486086.285552886 2.18307277756623 270.635015470764 27.0251857553453 -86.7596666216494 2522073.6416552 T 39 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:33 2021-Feb-24 01:02
2105-Jul-10 12:13 00:03 Jupiter 1.629532024936 1.62953000535652 1.6295340446559 2.6015887567655 2.39346488616648 2490086.008884716 3.10602155778969 826.536922389044 23.9355044192839 -82.9753923360762 2321899.80758346 T 39 CATAB v2.0f-lin.ifort 2021-Feb-24 01:02:33 2021-Feb-24 01:02

Alternate Designations
 1978 GD = 1966 DX = 1971 BH = 1978 HA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-04 03:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin