DATABASE of JOINT PLATE ARCHIVE (DBGPA V2.0)

11:41 10.07.2018
18.03.2018

Catalogs of the topocentric positions of Uranus, Neptune and their satellites, obtained from photographic observations at the MAO NAS of Ukraine in 1963-1990.

Yizhakevich E.M., Andruk V.N., Pakuliak L.K.

The reprocessing of photographic series of observations of Uranus, Neptune and their satellites observed at the MAO NASU during the years 1961-1990 is finished. New methods of image processing were used. The observers participated in observations at different times are MAO employees: M.L.Divinskiy, A.S.Kotovych(A.S.Duma), A.N.Kur'yanova, I.V.Ledovskaya (I.V.Kulyk), R.F.Lysiakova, S.P.Major, G.V.Moroz,A.B.Onegina, E.M.Sereda, S.V.Shatokhina.

All the observations were done using 3 telescopes, two of them are DLFA (Double Long Focus Astrograph, D/f=0.4/5.5m) and DWA (Double Wide Angle Astrograph, D/f=0.4/2.0m) located on the territory of MAO NASU (Marsden's No.083). The third one is Z600 Karl Zeiss reflector(Zeiss-600, D=0.6,Cassegrain F=7.5m; Marsden's No.188) is located in Uzbekistan on the mount Maidanak. All observational material was scanned on the commercial scanner Epson Expression 10000XL ЕЕ in the grey color range 16-bits with the resolution of 1200 dpi [1,2].

The data processing was made using the software developed in the Astrometry Department of MAO NASU. It works in the LINUX-MIDAS-ROMAFOT environment[3-5].

As a result, we obtain two astrometric catalogs in the TYCHO2 reference system. The statistics of the reduction for Uranus and its U1,U2,U3,U4 satellites is given in Table 1. The same data on Neptune and Triton (N1) are shown in Table 2.

The internal accuracy of positions is ±0.09 ... ±0.23 arcsec. The photometric accuracy of B-magnitudes is in the range of ±0.27 - ± 0.37 mag. The comparison of calculates topocentric positions with their theoretical predictions was carried out on-line using IMCCE ephemerides (DE405 +TASS1.7) http://nsdb.imcce.fr/multisat/nssephme.htm. Observation with (O-C) exceeded ±2.0 arcsec were excluded.

Table 1. Observational statistics for Uranus and its U1,U2,U3,U4 satellites. =================================================================================================== --------------------------------------------------------------------------------------------------- | Telescope/ | | Number of | | RMS of | Ref. Object | (period) | Bph | pos. pl. nig.| O-Cal Sd O-Cdl. Sd | Bph Alpha Delta| stars ------------------------|-----|----|---|-----|-------|----|-------|-----|-------------------|------ U1,Ariel Z600(1990) 12.4 2 2 2 -0.95 0.43 0.64 0.98 0.46 0.10 0.11 16 --------------------------------------------------------------------------------------------------- U2 Umbriel Z600(1990) 12.9 8 6 4 -0.01 0.63 0.27 0.46 0.54 0.11 0.14 16 DLFA(1963) 16.1 1 1 1 -0.22 - 0.12 - 0.21 0.04 0.04 97 --------------------------------------------------------------------------------------------------- U3 Titania Z600(1990) 12.9 25 18 7 0.08 0.49 0.06 0.36 0.49 0.07 0.12 18 DLFA(1963-64) 13.7 8 6 6 -0.25 0.38 0.19 0.52 0.28 0.05 0.04 109 --------------------------------------------------------------------------------------------------- U4,Oberon Z600(1990) 13.2 25 17 6 0.09 0.60 0.10 0.42 0.48 0.08 0.11 17 DLFA(1963-64) 14.3 7 6 6 0.04 0.42 0.02 0.27 0.27 0.05 0.04 106 DWA (1980) 12.5 1 1 1 0.04 - -0.63 - 0.27 0.10 0.11 1260 --------------------------------------------------------------------------------------------------- as a result,by satellites: 77 24 13 -------------------------------------------- URANUS Z600(1990) 10.2 23 16 7 0.00 - 0.03 - 0.47 0.09 0.12 17 DLFA(1963-64) 8.9 10 7 7 0.77 0.46 -0.18 0.50 0.28 0.06 0.07 100 DWA (1977-82) 6.2 35 16 9 0.13 0.63 -0.16 0.68 0.29 0.17 0.20 934 --------------------------------------------------------------------------------------------------- as a result, by Uranus: 8.4 68 39 23 -------------------------------------------- TOTAL (1963-1990) 145 39 23 --------------------------------------------------------------------------------------------------- =================================================================================================== Table 2. Observational statistics for Neptune and Triton(N1). =================================================================================================== --------------------------------------------------------------------------------------------------- | Telescope/ | | Number of | | RMS of | Ref. Object | (period) | Bph | pos. pl. nig.| O-Cal Sd O-C dl. Sd | Bph Alpha Delta| stars ------------------------|-----|--------------|-------|----|--------|----|-------------------|------ N1,Triton Z600 11.9 9 8 5 0.34 0.57 0.38 0.46 0.65 0.10 0.08 17 (1987,1990) DLFA(1963) 14.1 1 1 1 0.95 - -0.01 - 0.22 0.04 0.04 104 --------------------------------------------------------------------------------------------------- as a result, by telescopes: 10 9 6 -------------------------------------------- NEPTUNE Z600 9.1 16 13 7 -0.06 0.38 0.01 0.44 0.23 0.10 0.09 16 (1987,1990) DLFA 8.3 3 3 2 0.23 0.60 0.07 0.83 0.32 0.05 0.08 93 (1963,1971) DWA(1977-83) 8.5 33 14 7 0.20 0.68 -0.32 0.98 0.34 0.23 0.25 724 --------------------------------------------------------------------------------------------------- as a result, by telescopes: 52 30 16 -------------------------------------------- TOTAL (1963-1990): 62 39 16 =================================================================================================== .DAT FILEs' SUMMARY ================================================================================= File Summary: --------------------------------------------------------------------------------- FileName Lrecl Records Explanations --------------------------------------------------------------------------------- Read_Me 110 . This file DAT_URNn.dat 105 149 Catalogue of Topocentric positions of URANUS and U1,U2,U3,U4 by names and telescopes. ADD_URNn.dat 105 149 AdditionalData to The Catalogue of Topocentric positions of URANUS and U1-U4 DAT_NEPT.dat 79 65 Catalogue of Topocentric positions of NEPTUNE and TRITON (N1) by names and telescopes. ADD_NEPT.dat 105 65 Additional Data to The Catalogue of Topocentric positions of NEPTUNE and N1. ==================================================================================

Data (12.0 Kb).File: DAT_URNn.dat.

Data (14.4 Kb).File: ADD_URNn.dat.

Data (5.3 Kb). File: DAT_NEPT.dat.

Data (5.9 Kb). File: ADD_NEPT.dat.

Gallery of plate images used for catalogs:

gua.db.ukr-vo.org.....neptun_1963_1990

gua.db.ukr-vo.org.....uran_1963_1990

================================================================================== Byte-by-Byte Description of Files: DAT_URNn.dat and DAT_NEPT.dat ================================================================================== Bytes Format Units Label Explanations ---------------------------------------------------------------------------------- 1- 5 I5 year year Date of observation (year). 6- 8 I3 month mo Date of observation (month). 9-18 f10.6 day day Date of observation (day and decimal). 20-21 a2 obj Name of Object. 22-34 Alpha Right ascension (ICRF/J2000.0): 22-24 I3 hours hh -right ascension (hours) 25-27 I3 minute mn -right ascension (minutes) 28-34 f7.3 second ss -right ascension (seconds,decimal). 35-48 Declin Declination (ICRF/J2000.0): 35-38 I4 degree deg -declination (degrees) 39-41 I3 arcmin mi -declination (arcminutes) 42-48 f7.3 arcsec sec -declination (arcseconds). 49-55 f7.2 arcsec O-Cal Residual (O-C)alpha (arcsecond). 56-61 f6.2 arcsec O-Cdl Residual (O-C)delta (arcsecond). 62-67 I6 number Pl Plate number according to log-book. 68-68 a1 p Tube position relative to column: -"e"-east, -"w"-west. 69-70 a2 Tu Designation of tube: I or II. 71-74 I4 Exp Exposure duration . 75-75 a1 s/m seconds or minutes. 77-78 a2 Telec. Telescope: DL=DLFA, DW=DWA, DZ=DAZ,Z6=Z600. ---------------------------------------------------------------------------------- ================================================================================== Byte-by-byte Description of file: ADD_CATL.dat ================================================================================== Bytes Format Units Label Explanations ---------------------------------------------------------------------------------- 1- 5 I5 year year Date of observation (year). 6- 8 I3 month mo Date of observation (month). 9-18 f10.6 day day Date of observation (day and decimal). 20-21 a2 obj Name of Object. 22-26 I5 Npl Plate number according to log-book. 27-27 a1 p Tube position relative to column: -"e"-east,-"w"-west. 28-29 a2 Tu Designation of tube: I or II. 31-32 a2 Tel Telescope: DL=DLFA, DW=DWA, DZ=DAZ,Z6=Z600. 33-37 f5.1 mag Bph Photographic magnitude. 38-43 f6.2 rmsB R.M.S.(Photographic magnitude). 44-50 f7.3 arcsec rmsAl R.M.S.(Right ascension,J2000.0). 51-57 f7.3 arcsec rmsDl R.M.S.(Declination,J2000.0). 58-62 I5 Nz Number of reference stars (TYCHO2). 63-75 a13 emuls Type of Emulsion. 76-105 a30 obs Observer's name. ----------------------------------------------------------------------------------- =================================================================================== Note: The DLFA observations basically were made on the first tube "І" with the tube position to the west from the column - "W", the DWA ones - with the tube position to the east from the column - "Е". The absence of the informations means the standard conditions. ===================================================================================

References

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4.Pakuliak L., Andruk V., Shatokhina S., Golovnya V., Yizhakevych O.,Kulyk I. First results of MAO NASU SS bodies photographic archiv digitizing. //IMCCE.International Workshop NAROO-GAIA "A new reduction of old observations the Gaia era". Paris Observatory, June 2012. p.161-165..

5.Yizhakevych, O.; Andruk, V.;Pakuliak, L.; Lukianchuk, V. Photographic observations of Major planets and Their moons in MAO NAS of Ukraine during 1961-1990..// Bull.of T.Shevchenko Nat.Univ.of Kyiv., vol.1(55), p.9-13.

6.Yizhakevych O.M.,Andruk V.M.,Pakuliak L.K. Photographic observations of Major planets and Their moons during 1961- 1990 at the MAO NAS of Ukraine.//Odessa Astron. Publ., 2016, Vol.29, p.155-159. (http://gamow.odessa.ua/publications).<2016OAP....29..155Y>