CDROM/AJ/V112/P0772 Scanned V and I Photometry (Caldwell & Schechter 1996) ================================================================================ Scanned CCD V and I Photometry at the South Galactic Pole John A. R. Caldwell and Paul L. Schechter <1996, AJ, 112, 772> =1996AJ....112..772C ================================================================================ Abstract: Catalogs of V and I photometry for two 20 square degree regions near the South Galactic Pole, containing 30,000 and 19,000 stars, have been constructed using a CCD in time delay integration mode. Internal and external comparisons indicate a characteristic photometric accuracy ranging from 0.02 mag at V ~ 12 to 0.05 at V ~ 18-18.5. Description: The tables described below correspond to tables I-VII as mentioned in sections 5 and 6 of the printed paper. File Summary: -------------------------------------------------------------------------------- File Name Lrecl Records Explanations -------------------------------------------------------------------------------- table1.dat 77 29877 Catalog CS1 of CCD scanning photometry at the SGP table2.dat 77 18811 Catalog CS2 of CCD scanning photometry at the SGP table3.dat 79 77 Comparison with Eriksson, Uppsala Astro. Obs. Report No. 11 (1978) table4.dat 92 45 Comparison with Reid and Gilmore, MNRAS 201, p. 93, Appendix A (1982) table5.dat 81 32 Comparison with Reid and Gilmore, MNRAS 201, p. 87, Table 7 (1982) table6.dat 94 79 Comparison with Murray-Argyle-Corben, MNRAS 223, p. 629 (1986) table7.dat 116 75 Comparison of Stars with Multiple CCD/Photoelectric Photometry -------------------------------------------------------------------------------- Byte-by-byte Description of file: table1.dat table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 6 I6 --- CS CS star number (CS1 for table I; CS2 for table II) 7- 9 I3 h RAh Right ascension (1950) 10-12 I3 min RAm R.A. 13-18 F6.2 s RAs R.A. 19 1X --- --- Blank 20 A1 --- DE- Declination sign (1950) 21-22 I2 deg DEd Dec. 23-25 I3 arcmin DEm Dec. 26-30 F5.1 arcsec DEs Dec. 31-37 F7.3 mag V []? V magnitude 38-44 F7.3 mag I []? I magnitude 45-51 F7.3 mag V-I []? V-I color 52 1X --- --- Blank 53-56 I4 --- Code *Four-digit code 57-62 F6.3 mag e_V []? V magnitude error 63-68 F6.3 mag e_I []? I magnitude error 69-74 F6.3 mag e_V-I []? V-I color error 75 1X --- --- Blank 76 A1 --- S *[s] s = split stars 77 A1 --- U *[u] u = uncertainty because star is faint -------------------------------------------------------------------------------- Notes for file: table1.dat table2.dat -------------------------------------------------------------------------------- Code: A four-digit number gives from left to right: a first digit of 1 or 0 depending on whether or not the star was found to be a split star on any scan, a second digit for the number of V values, a third digit for the number of I values, and a last digit for the number of nearly simultaneous V and I values. S: A split star has at least some contributory data where another star was sufficiently close that the "split star" mothod of solution (Schechter et al, 1993, PASP, 105, 1342) was invoked. U: A "u" appears for stars so faint that the nonlinearity correction (Section 4 of the printed paper) was excessively uncertain. These were excluded from all use and are thus not included in the totals given in Table 2 of the printed paper. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table3.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 6 I6 --- CS1 CS1 star number 7- 9 I3 h RAh Right ascension (1950) 10-12 I3 min RAm R.A. 13-18 F6.2 s RAs R.A. 19 1X --- --- Blank 20 A1 --- DE- Declination sign (1950) 21-22 I2 deg DEd Dec. 23-25 I3 arcmin DEm Dec. 26-30 F5.1 arcsec DEs Dec. 31-38 F8.3 mag Vcs []? CS V magnitude 39-46 F8.3 mag Ics CS I magnitude 47-52 I6 --- Ne Eriksson number 53-59 F7.2 mag Ve Eriksson V magnitude 60-65 F6.2 mag B-Ve Eriksson B-V color 66-71 F6.2 mag U-Be Eriksson U-B color 72-79 F8.3 mag Ve-Vcs *[]? Eriksson - CS V magnitude difference -------------------------------------------------------------------------------- Notes for file: table3.dat -------------------------------------------------------------------------------- Ve-Vcs: Median (53 pts, 2 rej) = 0.000 +/- 0.003 Median-based est. std. dev. = 0.015 -------------------------------------------------------------------------------- Byte-by-byte Description of file: table4.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 6 I6 --- CS1 CS1 star number 7- 9 I3 h RAh Right ascension (1950) 10-12 I3 min RAm R.A. 13-18 F6.2 s RAs R.A. 19 1X --- --- Blank 20 A1 --- DE- Declination sign (1950) 21-22 I2 deg DEd Dec. 23-25 I3 arcmin DEm Dec. 26-30 F5.1 arcsec DEs Dec. 31-38 F8.3 mag Vcs []? CS V magnitude 39-46 F8.3 mag Ics []? CS I magnitude 47-50 I4 --- Nr Reid & Gilmore App. A number 51-57 F7.2 mag Vr Reid & Gilmore App. A V magnitude 58-63 F6.2 mag B-Vr Reid & Gilmore App. A B-V color 64-69 F6.2 mag V-Rr Reid & Gilmore App. A V-R color 70-76 F7.2 mag Ir Reid & Gilmore App. A I magnitude 77-84 F8.3 mag Vr-Vcs *[]? R&G - CS V magnitude difference 85-92 F8.3 mag Ir-Ics *[]? R&G - CS I magnitude difference -------------------------------------------------------------------------------- Notes for file: table4.dat -------------------------------------------------------------------------------- Vr-Vcs: Median (25 pts, 5 rej) = 0.006 +/- 0.005 Median-based est. std. dev. = 0.020 Ir-Ics: Median (40 pts, 4 rej) = 0.012 +/- 0.005 Median-based est. std. dev. = 0.024 -------------------------------------------------------------------------------- Byte-by-byte Description of file: table5.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 6 I6 --- CS1 CS1 star number 7- 9 I3 h RAh Right ascension (1950) 10-12 I3 min RAm R.A. 13-18 F6.2 s RAs R.A. 19 1X --- --- Blank 20 A1 --- DE- Declination sign (1950) 21-22 I2 deg DEd Dec. 23-25 I3 arcmin DEm Dec. 26-30 F5.1 arcsec DEs Dec. 31-38 F8.3 mag Vcs []? CS V magnitude 39-46 F8.3 mag Ics []? CS I magnitude 47-51 I5 --- Nr Reid & Gilmore Tab. 7 number 52-58 F7.2 mag Vr Reid & Gilmore Tab. 7 V magnitude 59-65 F7.2 mag Ir Reid & Gilmore Tab. 7 I magnitude 66-73 F8.3 mag Vr-Vcs *R&G - CS V magnitude difference 74-81 F8.3 mag Ir-Ics *[]? R&G - CS I magnitude difference -------------------------------------------------------------------------------- Notes for file: table5.dat -------------------------------------------------------------------------------- Vr-Vcs: Median (32 pts) = -0.031 +/- 0.010 Median-based est. std. dev. = 0.046 Ir-Ics: Median (29 pts, 2 rej) = -0.017 +/- 0.011 Median-based est. std. dev. = 0.047 -------------------------------------------------------------------------------- Byte-by-byte Description of file: table6.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 6 I6 --- CS1 CS1 star number 7- 9 I3 h RAh Right ascension (1950) 10-12 I3 min RAm R.A. 13-18 F6.2 s RAs R.A. 19 1X --- --- Blank 20 A1 --- DE- Declination sign (1950) 21-22 I2 deg DEd Dec. 23-25 I3 arcmin DEm Dec. 26-30 F5.1 arcsec DEs Dec. 31-38 F8.3 mag Vcs []? CS V magnitude 39-46 F8.3 mag Ics []? CS I magnitude 47-53 I7 --- Nco Corben number 54-60 F7.2 mag Vco Corben V magnitude 61-66 F6.2 mag B-Vco Corben B-V color 67-72 F6.2 mag V-Rco []? Corben V-R color 73-79 F7.2 mag Ico []? Corben I magnitude 80-87 F8.3 mag Vco-Vcs *[]? Corben - CS V magnitude difference 88-94 F7.3 mag Ico-Ics *[]? Corben - CS I magnitude difference -------------------------------------------------------------------------------- Notes for file: table6.dat -------------------------------------------------------------------------------- Vco-Vcs: Median (42 pts) = -0.004 +/- 0.004 Median-based est. std. dev. = 0.019 Ico-Ics: Median (73 pts) = -0.002 +/- 0.001 Median-based est. std. dev. = 0.010 -------------------------------------------------------------------------------- Byte-by-byte Description of file: table7.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 6 I6 --- CS1 CS1 star number 7- 9 I3 h RAh Right ascension (1950) 10-12 I3 min RAm R.A. 13-18 F6.2 s RAs R.A. 19 1X --- --- Blank 20 A1 --- DE- Declination sign (1950) 21-22 I2 deg DEd Dec. 23-25 I3 arcmin DEm Dec. 26-30 F5.1 arcsec DEs Dec. 31-32 2X --- --- Blank 33-34 A2 --- Src1 *Source 1 35-41 F7.3 mag V1 []? V magnitude 1 42-48 F7.3 mag I1 []? I magnitude 1 49 1X --- --- Blank 50-51 A2 --- Src2 *Source 2 52-58 F7.3 mag V2 []? V magnitude 2 59-65 F7.3 mag I2 []? I magnitude 2 66 1X --- --- Blank 67-68 A2 --- Src3 *Source 3 69-75 F7.3 mag V3 []? V magnitude 3 76-82 F7.3 mag I3 []? I magnitude 3 83 1X --- --- Blank 84-85 A2 --- Src4 *Source 4 86-92 F7.3 mag V4 []? V magnitude 4 93-99 F7.3 mag I4 []? I magnitude 4 100 1X --- --- Blank 101-102 A2 --- Src5 *Source 5 103-109 F7.3 mag V5 []? V magnitude 5 110-116 F7.3 mag I5 []? I magnitude 5 -------------------------------------------------------------------------------- Notes for file: table7.dat -------------------------------------------------------------------------------- Src1, Src2, Src3, Src4, Src5: Source Key: ccd photometry: CS this work Tab. I p.e.photometry: Ca this work Tab. 4 Co Murray-Argyle-Corben Er Eriksson RA Reid-Gilmore (App. A) R7 Reid-Gilmore (Tab. 7) ptg.photometry: Ep Eriksson KG Kuijken-Gilmore -------------------------------------------------------------------------------- ================================================================================ (End) Lee Brotzman [ADS] 14-Aug-1996