Washington Double Star Supplemental Catalog (WDSS) - formats Format for the summary lines are as follows: ---------------------------------------------------------------------------------------------------- 01 001-014 a14 WDSS identifier 02 016-018 a3 Component identifier 03 025-028 i4 dates of first/last observation 04 030-032 i3 Number of astrometric observations 05 034-036 i3 deg First/last position angle 06 038-043 f6.2 arcsec First/last separation (arcseconds or as noted) 07 044-044 a1 Flag for separation units m = mas M = arcminutes D = degrees 08 046-050 f5.2 mag Primary/secondary visual magnitudes 09 051-051 a1 Flag for filter: blank = Gaia DR2 584/436 nm G filter (default) b = blue r = red g = SDSS g (477/280 nm) 10 053-057 f5.2 mag Primary/secondary infrared magnitudes 11 058-058 a1 Flag for filter: blank = K-band (default) h = H-band j = J-band 12 060-064 a5 Spectral type of primary/secondary 13 066-081 2f8.2 mas/y Proper motion (RA and DEC) of primary/secondary 14 083-089 f7.2 mas Parallax of primary/secondary 15 091-114 a24 Alternate name for primary/secondary. Default is the Gaia Second Data Release, or DR2 designation, which constituted 99.2% of all alternte designations as of Nov 2021. Next most common is the Gaia Early Third Data Release, or ER3 designation (0.3%). 16 116-117 2a1 Note flags: C = pair has both orbit and linear solutions, uncertain which is correct L = pair has rectilinear solution in Linear Elements Catalog N = see note in notes file O = pair has orbital solution in the Sixth Orbit Catalog U = pair is optical, based on parallax, proper motion, or other factors V = pair is physical, based on parallax, proper motion, or other factors X = pair is bogus (due to error in published coordinates, plate flaw identified as star, or other problem) 17 119-136 Coordinates (J2000) of primary/secondary 2i2,f5.2 hhmmss.ss Right ascension a1,2i2,f4.1 +ddmmss.s Declination 18 138-147 a10 Designation in main WDS of component matching object in that catalog 19 149-155 a7 Discoverer designation in main WDS catalog 20 156-160 a5 Component designation in main WDS catalog ==================================================================================================== Format for measurement lines are as follows: ---------------------------------------------------------------------------------------------------- 01 001-014 a14 WDSS identifier 02 017-023 a7 Component pair identifier 03 025-034 f10.5 Date of observation (Julian epoch) 04 036-036 a1 Position angle flag : = value is uncertain/estimated L = originally published as nf, sp, etc. q = quadrant has been flipped 180deg from published value V = measure is a vector separation along this angle vector 05 037-043 f7.3 deg Position angle 06 045-050 f6.3 deg Position angle error 07 052-052 a1 Separation flag : = value is uncertain/estimated < = separation is less than quoted value E = pair elongated U = pair unresolved/single G,O,S,V,X = Hipparcos non-component double star solutions or suspected non-single R = pair resolved but no separation give D = separation is in degrees M = separation is in arcminutes m = separation is in milliarcseconds 08 053-061 f9.5 arcsec Separation (arcseconds or as noted by separation flag) 09 063-063 a1 Separation error flag P, F, G, V = quality flags (poor, fair, etc.) > = error is lower limit to true value < = error is upper limit to true value 10 064-070 f7.5 arcsec Separation error (same units as separation) 11 072-072 a1 Primary magnitude flag > = magnitude is lower limit to true value v = primary is variable 12 073-078 f6.3 mag Primary magnitude 13 079-079 a1 Primary magnitude error flag > = error is lower limit to true value < = error is upper limit to true value 14 080-084 f5.3 mag Primary magnitude error 15 086-086 a1 Secondary magnitude flag > = magnitude is lower limit to true value s = magnitude rather than magnitude difference (only used if primary magnitude field is blank) f = star is too faint v = secondary is variable 16 087-092 f6.3 mag Secondary magnitude, or magnitude difference if primary magnitude field is blank 17 093-093 a1 Secondary magnitude error flag > = error is lower limit to true value < = error is upper limit to true value 18 094-098 f5.3 mag Secondary magnitude error 19 100-107 2i4 nm Filter effective wavelength and FWHM or 2f4.1 20 108-108 a1 Filter flag a = value is average of multiple filters u = wavelength is in microns m = wavelength is in mm c = wavelength is in cm M = wavelength is in meters B = blue filter (effective wavelength/FWHM values unknown) K = IR filter (effective wavelength/FWHM values unknown) R = red filter (effective wavelength/FWHM values unknown) X = X-ray band (effective wavelength/FWHM values unknown) n = no filter used ? = filter information is uncertain : =filter information is approximate 21 110-114 f5.1 m Telescope aperture 22 115-115 a1 Telescope aperture flag a = average of multiple telescopes k = multiple aperture telescope, baseline in km 23 117-118 i2 Number of nights averaged into mean measure 24 120-127 a7 Reference code (see file wdsref.memo) 25 129-130 a2 Technique code (see table below) ==================================================================================================== Technique codes for measurement lines: (Note: a plus sign (+) in the technique columns of wdsref.memo indicates the paper contains measures made by more than one similar method. For example, H+ means the paper includes measures from more than one space-based technique.) A = adaptive optics Aa = adaptive optics with apodizing phase plate Ac = CHARA adaptive optics Ad = adaptive optics spectral deconvolution technique Ag = laser-guided AO Al = adaptive optics imaging, keeping only selected images ("lucky imaging") Am = adaptive optics with aperture mask Ao = adaptive optics coronagraph As = AO + dark speckle coronagraph Aw = adaptive optics with coronagraph and "well-corrected subaperture" C = CCD or other two-dimensional electronic imaging Ca = area scanner Cc = IR coronagraph Ce = electronographic camera Cg = imaging using Gaussian aperture pupil mask Ci = IR direct imaging Cl = short-exposure CCD imaging, keeping only selected images ("lucky imaging") Cp = IR imaging polarimetry Cs = IR one-dimensional slit scanning Cu = USNO CCD imaging (speckle-style reduction) D = Heliometer E = Wide-field CCD or other two-dimensional electronic imaging E2 = 2MASS (Two Micron All-Sky Survey) Ed = DENIS (Deep Near-Infrared Survey) Ek = UKIDSS (UKIRT Infrared Deep Sky Survey) Ep = PPMX, PPMXL Er = USNO URAT Es = SDSS (Sloan Digital Sky Survey) Eu = UCAC Ey = Yale SPM (Southern Proper Motion) Survey H = Hipparcos/Tycho, HST, Spitzer, or other space-based technique Ha = HST + ACS Hc = Chandra He = Einstein Hf = HST + Fine Guidance Sensor Hg = Gaia Hh = Hipparcos Hi = Spitzer Space Telescope + IRAC (Infrared Array Camera) Hk = Kepler Hm = Spitzer Space Telescope + MIPS (Multiband Imaging Photometer for Spitzer) Hn = HST + NICMOS IR direct imaging Ho = HST + Faint Object Camera Hp = HST + WFPC2 Planetary Camera Hs = HST + STIS Ht = Tycho Hw = WISE (Wide-field Infrared Survey Explorer) satellite (IR imaging) Hx = Spitzer Space Telescope + SpeX spectrometer and slit-viewing camera Hz = XMM Newton satellite I = interferometric technique Ig = phase grating interferometer Im = Michelson interferometer J = visual interferometer [aperture value indicates the longest baseline on the monolithic mirror (e.g., 0.7m for Finsen's eyepiece interferometer or 6.1m for the 20-foot beam used on the Mount Wilson 100inch)] Jm = Mount Wilson 100inch telescope rotating interferometer (Anderson, Merrill) Jp = Mount Wilson 20-foot beam interferometer (Pease) K = long-baseline visual/IR/radio interferometer (aperture value indicates the longest baseline used) K2 = CERGA 2-telescope interferometer Ka = VLTI/AMBER Kb = BIMA Kc = CHARA Array Ke = European VLBI network Kf = CHARA Array (separated fringe packet data) Kg = global VLBI array Ki = IOTA Kk = Keck interferometer Kl = VLA/VLBA Km = Mark III Kn = NPOI/NOI [Navy (Prototype) Optical Interferometer] Kp = PTI (Palomar Testbed Interferometer) Kr = radio/IR aperture synthesis technique Ks = SUSI (Sydney University Stellar Interferometer) Ku = Pulkovo Stellar Interferometer M = micrometry technique Ma = micrometer with refractor Mb = micrometer with reflector Mc = comparison image micrometer Md = visual measures with a double-image micrometer Mg = illuminated-reticle micrometer (e.g. Celestron Micro-Guide) Mr = RGO use of micrometer plus comparison image micrometer on same star O = occultation P = photographic technique Pa = photographic, with astrograph Pb = USNO-B photographic, with multiple astrographs Pc = Astrographic Catalog Pe = ESO Schmidt astrograph Pk = AGK Catalog Po = photographic, with medium or long-focus technique or ocular enlargement Pp = Palomar Observatory Sky Survey POSS-I: 1948-1958, 48in/1.2m Schmidt POSS-II: 1985-1999, 48in/1.2m Schmidt Pu = UK Schmidt Southern Survey 1974-1987, 48in/1.2m Schmidt S = speckle interferometric technique Sa = aperture masking technique (MAPPIT, etc.) Sb = bispectrum speckle interferometric technique Sc = CHARA speckle Si = IR speckle Sp = speckle polarimetry Ss = shift-and-add technique St = Tokovinin "hrcam" Su = USNO speckle T = Transit circle / Meridian circle Tm = "Eyepiece micrometer" transit/chronometric technique V = visual estimate X = spectroscopic technique Xg = visual estimate made with an objective grating Xh = high-resolution spectroscopy Xl = low-resolution spectroscopy Xr = resolved spectroscopy Xs = spectrophotometry Z = photometric technique Z = photometer Zc = CCD photometry Zd = photocell with diaphragm in focal plane Zp = visual photometry with a double-image or polarizing photometer Zw = wedge photometer ==================================================================================================== 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001111111111111111111111111111111111111111111111111111111111111 0000000001111111111222222222233333333334444444444555555555566666666667777777777888888888899999999990000000000111111111122222222223333333333444444444455555555556 1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 ---------------------------------------------------------------------------------------------------------------------------------------------------------------- wdss.......... comp.... frst nnn th1 rho1..* vmag1* kmag1* spec1 pm1............. par1... name1................... ** coords1........... wds_old... dd_old.comp. last th2 rho2..* vmag2* kmag2* spec2 pm2............. par2... name2................... coords2........... ---------------------------------------------------------------------------------------------------------------------------------------------------------------- 1234567+123456 Aa1.... 1234 123 123 123.45* 12.34* 12.34* A1Iab +1234.56+1234.56 1234.56 123456789012345678901234 XY 123456.78+123456.7 12345+1234 XYZ1234AB,CD ---------------------------------------------------------------------------------------------------------------------------------------------------------------- 0000004+054750 A 2008 1 25 13.17 20.87g . K7 . . . SLW 0000+0547 V 000000.44+054750.7 0000004+054750 B 2008 25 13.17 22.08g . M1 . . . 000000.82+054802.6 0000004+054750 AB 2008.8151 25. . 13.17 . 26.285 0.449 24.040 0.985 355 120 2.5 1 Dhi2015 Es 0000004+054750 AB 2008.8151 . . . . 20.868 0.038 22.083 0.103 477 280 2.5 1 Dhi2015 Es 0000004+054750 AB 2008.8151 . . . . 19.479 0.017 20.531 0.038 623 280 2.5 1 Dhi2015 Es 0000004+054750 AB 2008.8151 . . . . 18.844 0.017 19.688 0.033 762 300 2.5 1 Dhi2015 Es 0000004+054750 AB 2008.8151 . . . . 18.447 0.037 19.120 0.065 913 240 2.5 1 Dhi2015 Es 0000010+151505 A 1998 2 211 4.13 20.09g 14.63 M1 . . . SLW 0000+1515 V 000001.06+151505.1 0000010+151505 B 2000 212 4.08 16.54g 13.46 K2 28.4 -1.9 . 2MASS J00000091+1515015 000000.92+151501.7 0000010+151505 AB 1998.883 211.0 . 4.126 . 14.524 . 13.979 . 1256 245 1.3 1 TMA2003 E2 0000010+151505 AB 1998.883 . . . . 14.923 0.170 13.528 0.035 1633 160 1.3 1 TMA2003 E2 0000010+151505 AB 1998.883 . . . . 14.627 0.093 13.456 0.046 2210 300 1.3 1 TMA2003 E2 0000010+151505 AB 2000.7388 212. . 4.08 . 22.554 0.255 18.720 0.018 355 120 2.5 1 Dhi2015 Es 0000010+151505 AB 2000.7388 . . . . 20.092 0.017 16.539 0.004 477 280 2.5 1 Dhi2015 Es 0000010+151505 AB 2000.7388 . . . . 18.271 0.008 15.635 0.005 623 280 2.5 1 Dhi2015 Es 0000010+151505 AB 2000.7388 . . . . 17.410 0.007 15.314 0.005 762 300 2.5 1 Dhi2015 Es 0000010+151505 AB 2000.7388 . . . . 16.952 0.013 15.147 0.006 913 240 2.5 1 Dhi2015 Es 0003431-075506 A 2009 1 61 9.67 21.21g 15.21 M2 . . . SLW 0003-0755 V 000343.16-075506.1 0003431-075506 B 2009 61 9.67 21.48g 15.83 M2 . . . 2MASS J00034378-0755014 000343.74-075501.5 0003431-075506 AB 2009.7897 61. . 9.67 . 22.374 0.457 22.927 0.731 355 120 2.5 1 Dhi2015 Es 0003431-075506 AB 2009.7897 . . . . 21.206 0.048 21.480 0.061 477 280 2.5 1 Dhi2015 Es 0003431-075506 AB 2009.7897 . . . . 19.865 0.024 20.040 0.027 623 280 2.5 1 Dhi2015 Es 0003431-075506 AB 2009.7897 . . . . 18.648 0.013 18.829 0.014 762 300 2.5 1 Dhi2015 Es 0003431-075506 AB 2009.7897 . . . . 18.092 0.028 18.207 0.031 913 240 2.5 1 Dhi2015 Es 0003431-075506 A 2009 1 92 10.08 21.21g 15.21 M2 . . . SLW 0003-0755 V 000343.16-075506.1 0003431-075506 C 2009 92 10.08 21.52g 15.56 M2 . . . 2MASS J00034383-0755065 000343.84-075506.4 0003431-075506 AC 2009.7897 92. . 10.08 . 22.374 0.457 26.031 0.908 355 120 2.5 1 Dhi2015 Es 0003431-075506 AC 2009.7897 . . . . 21.206 0.048 21.521 0.063 477 280 2.5 1 Dhi2015 Es 0003431-075506 AC 2009.7897 . . . . 19.865 0.024 19.862 0.024 623 280 2.5 1 Dhi2015 Es 0003431-075506 AC 2009.7897 . . . . 18.648 0.013 18.667 0.013 762 300 2.5 1 Dhi2015 Es 0003431-075506 AC 2009.7897 . . . . 18.092 0.028 18.106 0.028 913 240 2.5 1 Dhi2015 Es 0003431-075506 B 2009 1 163 5.16 21.48g 15.83 M2 . . . 2MASS J00034378-0755014 000343.74-075501.5 0003431-075506 C 2009 163 5.16 21.52g 15.56 M2 . . . 2MASS J00034383-0755065 000343.84-075506.4 0003431-075506 BC 2009.7897 163. . 5.16 . 22.927 0.731 26.031 0.908 355 120 2.5 1 Dhi2015 Es 0003431-075506 BC 2009.7897 . . . . 21.480 0.061 21.521 0.063 477 280 2.5 1 Dhi2015 Es 0003431-075506 BC 2009.7897 . . . . 20.040 0.027 19.862 0.024 623 280 2.5 1 Dhi2015 Es 0003431-075506 BC 2009.7897 . . . . 18.829 0.014 18.667 0.013 762 300 2.5 1 Dhi2015 Es 0003431-075506 BC 2009.7897 . . . . 18.207 0.031 18.106 0.028 913 240 2.5 1 Dhi2015 Es ==========================================================================================================================================================