J/other/SoSyR/49.383 Galilean satellites & Jupiter positions (Narizhnaya, 2015)
Observations of the Galilean Satellites of Jupiter with Pulkovo Normal
Astrograph during 2009-2011.
Narizhnaya N.V.
<Solar System Res., 49, 383 (2015)>
=2015SoSyR..49..383N 2015SoSyR..49..383N (SIMBAD/NED BibCode)
ADC_Keywords: Solar system ; Planets ; Positional data
Keywords: Galilean moons of Jupiter - astrometry - CCD observations -
exact positions - theory of satellite motion - theory of planets
Abstract:
For observational period of 2009-2011 we have obtained 140 positions
of Galilean satellites and 42 calculated positions of Jupiter in the
system of UCAC4 catalogue (ICRS, J2000.0). Accuracy estimation gives
error of mean position as 0.02-0.04". The resulting equatorial
coordinates satellites were compared with the eight contemporary
theories of the motion of planets and satellites. On average, the
(O-C) residuals in both coordinates do not exceed 0.08" relative to
all theories of motion. Comparison of the calculated equatorial
coordinates of Jupiter (were obtained from observations of galilean
satellites) with the INPOP10 theory of planetary motion has shown
satisfactory results. The average deviations were obtained
respectively (O-C)RA=0.040" and (O-C)DE=-0.053". This work was
supported by the Program 22 of the Presidium of RAS and RFBR grant
(12-02-00675-a).
Description:
All observations were carried out with the Normal Astrograph
(D/F=330mm/ 3467mm) at Pulkovo (code is 084). A S2C CCD camera was
used as a detector (with a field of view of 18'x16' and a scale of
0.952"/pixel). The CCD_frames with object image were obtained by
series including 5, 10, 50, 100 images, depending on exposures of 60,
30, 10 and 5 s, respectively. The IZMCCD software package developed by
Izmailov I.S. (2005, http://iznccd.puldb.ru/ izmccdrus) was used in
processing the CCD images. Astrometric reduction algorithm is based on
Turner's method with using UCAC4 catalog as reference one. Ephemerides
for comparison are given by web-server "Natural Satellites Ephemeride
Server MULTI-SAT" developed by N.V. Emelyanov
(http://lnfm1.sai.msu.ru/neb/nss/nssephmr.htm). Two catalogue are
presented: 140 normal positions of Galilean satellites and 42 Jupiter
positions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
satsdat.dat 83 140 Positions of Galilean satellites
(1-Io, 2- Europa, 3-Ganymede, 4-Callisto)
jovedat.dat 62 42 Positions of Jupiter
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See also:
J/A+A/314/312 : Galilean satellites mutual events in 1997 (Arlot 1996)
J/A+AS/125/399 : Mutual phenomena of the Galilean satellites (Arlot+ 1997)
J/A+A/383/719 : Galilean Satellites mutual events 2002-2003 (Arlot, 2002)
J/A+A/493/1171 : Mutual phenomena of Galilean satellites PHEMU03 (Arlot+, 2009)
J/A+A/532/A36 : Galilean satellites mutual events in 2009 (Zhang, 2011)
J/other/SoSyR/45.523 : Saturnian satellites CCD observations (Grosheva+, 2011)
Byte-by-byte Description of file: satsdat.dat
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Bytes Format Units Label Explanations
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1 I1 --- SatNo [1/4] Identification number of galilean
satellite (1)
3- 19 A17 "date" Obs.Date Mean observation date (YYYY/MM/DD.dddddd)
21- 22 I2 h RAh Right ascension (J2000.0) (2)
24- 25 I2 min RAm Right ascension (J2000.0) (2)
27- 32 F6.3 s RAs Right ascension (J2000.0) (2)
34 A1 --- DE- Declination sign (J2000.0) (2)
35- 36 I2 deg DEd Declination (J2000.0) (2)
38- 39 I2 arcmin DEm Declination (J2000.0) (2)
41- 45 F5.2 arcsec DEs Declination (J2000.0) (2)
47- 52 F6.3 arcsec (O-C)RA (O-C) residual in right ascension (3)
54- 59 F6.3 arcsec (O-C)DE (O-C) residual in declination (3)
61- 65 F5.3 arcsec e_(O-C)RA error of mean O-C in right ascension
67- 71 F5.3 arcsec e_(O-C)DE error of mean O-C in declination
73- 77 F5.3 arcsec s_(O-C)RA standard deviation of O-C in right ascension
79- 83 F5.3 arcsec s_(O-C)DE standard deviation of O-C in declination
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Note (1): Satellite number as follows:
1 = Io
2 = Europa
3 = Ganymede
4 = Callisto
Note (2): topocentric equatorial coordinates of Galilean satellites, J2000.0.
Note (3): "Observed-Calculated" residuals by web-sever "MULTI-SAT", calculated
from ephemerides within the INPOP10 and V.Lainey-V.2.0|V1.1 theories
-------------------------------------------------------------------------------
Byte-by-byte Description of file: jovedat.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
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1- 4 I4 --- Sats Idenficiation numbers of galilean
satellites (1)
6- 22 A17 "date" Obs.Date Mean observation date UTC (YYYY/MM/DD.dddddd)
24- 25 I2 h RAh Jupiter right ascension (J2000.0) (2)
27- 28 I2 min RAm Jupiter right ascension (J2000.0) (2)
30- 35 F6.3 s RAs Jupiter right ascension (J2000.0) (2)
37 A1 --- DE- Jupiter declination sign (J2000.0) (2)
38- 39 I2 deg DEd Jupiter declination (J2000.0) (2)
41- 42 I2 arcmin DEm Jupiter declination (J2000.0) (2)
44- 48 F5.2 arcsec DEs Jupiter declination (J2000.0) (2)
50- 55 F6.3 arcsec (O-C)RA (O-C) residual in right ascension (3)
57- 62 F6.3 arcsec (O-C)DE (O-C) residual in declination (3)
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Note (1): Identification numbers of satellites which observations were used for
deriving positions of Jupiter.
Note (2): topocentric positions of Jupiter obtained from observations of
galilean satellites and its Jove-centric ephemerides by "MULTI-SAT" service,
2000.0 (http://Infm1.sai.msu.ru/neb/nss/nssephmr.htm) by Emelyanov N.V.
Note (3): "Observed-Calculated" residuals by web-sever "MULTI-SAT" (INPOP10).
--------------------------------------------------------------------------------
Acknowledgements:
Natalia Narizhnaya, nnat(at)gao.spb.ru
References:
Izmailov I.S., Izmccd software for astrometric processing of numerical images
of the celestial objects, 2005, http://iznccd.puldb.ru/izmccdrus
(End) Natalia Narizhnaya [GAO, Russia], Patricia Vannier [CDS] 07-Mar-2016