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II/2B Two-Micron Sky Survey (TMSS) (Neugebauer+ 1969)
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The Two-Micron Sky Survey
Neugebauer G., Leighton R.B.
<NASA SP-3047 (1969)>
=1969IRC...C......0N
=1969QB6.N47........
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ADC_Keywords: Photometry, infrared; Surveys
Description:
The catalog, giving sources of emission in the 2.2-micrometer region
for more than 5000 stars, represents a systematic survey of the
Northern Hemisphere for stars brighter than third magnitude. The
survey was carried out with a telescope at Mount Wilson, California,
having a 62-inch diameter and an f/l aluminized epoxy mirror mounted
equatorially. Radiation at an effective wavelength of 2.2 micrometers
was detected by a lead sulfide photoconductive cell cooled by liquid
nitrogen. In addition to the 2.2-micrometer detector array, radiation
at an effective wavelength of 0.84 micrometers was detected by a
simple silicon photovoltaic cell. The catalog includes right ascension
and declination (B1950.0), K and I magnitudes, number of measurements,
V magnitude, spectral types, cross identifications to the numbering
systems of the General Catalogue, the Durchmusterung catalogs, the
Bright Star Catalogue, and star names.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 164 5612 Catalog Data
chisq.dat 36 2574 Chi-square Excess
remarks.dat 78 140 Remarks
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See also:
II/94 : The Revised AFGL Sky Survey Catalog and Supplement (Price+ 1983)
II/216 : Catalog of Infrared Observations, Edition 4 (CIO) (Gezari+ 1997)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- IRC *Two-Micron Sky Survey number (TMSS)
7 I1 --- f_IRC [0,1] '1' if a remark exists in remarks.dat
8- 9 I2 h RAh Right ascension 1950 (hours)
11- 12 I2 min RAm Right ascension 1950 (minutes)
14- 15 I2 s RAs Right ascension 1950 (seconds)
17 A1 --- DE- Sign of declination
18- 19 I2 deg DEd Declination 1950 (degrees)
21- 24 F4.1 arcmin DEm Declination 1950 (arc minutes)
25- 27 I3 s e_RAs Right ascension 1950 uncertainty
28- 32 F5.2 --- 2_RAs Right ascension chi-square
33- 35 F3.1 arcmin e_DEm Declination 1950 uncertainty
36- 39 F4.1 --- 2_DEm Declination chi-square
41- 45 F5.2 mag Kmag K magnitude (ignore if Scale = 3 or 4)
47- 50 F4.2 mag e_Kmag K error (ignore if Scale = 3 or 4)
51- 55 F5.2 --- 2_Kmag K chi-square (ignore if Scale = 3 or 4)
57- 61 F5.2 mag Imag *I magnitude
63- 66 F4.2 mag e_Imag *I error
67- 71 F5.2 --- 2_Imag *I chi-square
73 I1 --- n_Imag *[0,1] I magnitude questionable
75 I1 --- Excess *[1-4] I and K chi-square excess flags
76 I1 --- Scale *[1-4] I and K scale flags
77- 78 I2 ct o_Kmag Number of K measurements
79- 80 I2 ct o_Imag Number of I measurements
81 I1 --- KIflag *[0,1] Remark on K and I counts
82- 91 I10 --- tTable *Observational timetable
94- 98 F5.2 mag Vmag ? V magnitude
100-102 A3 --- SpType Spectral (temperature) class
105 I1 --- Lum *[2-8]? Luminosity class
107-110 I4 --- HR *? HR/BS (see Cat. <V/50>) number
112-116 I5 --- GC *? GC (Cat. <I/113>) number
118-127 A10 --- DM *DM (BD, CD, CPD) number
129-136 A8 --- GCVS *Variable Star name
139-141 I3 s dRA *[]? RA difference with counterpart
143-146 F4.1 arcmin dDE *[]? Declination difference with counterpart
147-155 F9.5 rad RAdit Right ascension 1950 (radians)
156-164 F9.5 rad DEdit Declination 1950 (radians)
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Note on IRC:
This number is made from the declination strip (of 10 {deg} wide)
followed by a sequential number in the strip. The repartition in
declination of the catalogue is as follows:
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Declination Zones (degrees) Sequential Record Number
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-30: -33 to -25 1-472
-20: -25 to -15 473-1116
-10: -15 to - 5 1117-1725
+00: - 5 to + 5 1726-2262
+10: + 5 to +15 2263-2807
+20: +15 to +25 2808-3365
+30: +25 to +35 3366-3887
+40: +35 to +45 3888-4435
+50: +45 to +55 4436-4919
+60: +55 to +65 4920-5353
+70: +65 to +75 5354-5555
+80: +75 to +81 5556-5612
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Note on Imag:
Ignore if I magnitude > 14.0 and/or ignore if Scale (byte 76) = 2 or 4.
Note on e_Imag, 2_Imag:
Ignore if I magnitude > 14.0 and/or ignore if n_Imag (byte 73) = 1
and/or ignore if Scale (byte 76) = 2 or 4.
Note on n_Imag:
= 1, if I magnitude is questionable; = 0, otherwise
Note on Excess:
= 1, if chi-square is not excessive
= 2, if I chi-square is excessive
= 3, if K chi-square is excessive
= 4, if I and K chi-square are excessive
Individual observations are in file chisq.dat when Excess differs from 1.
Note on Scale:
= 1, if I and K both on scale
= 2, if I off scale
= 3, if K off scale
= 4, if both I and K off scale
Note on KIflag:
= 1, if there is a remark; = 0, otherwise
Note on tTable:
Range of days on which observations were made starting with
January 30, 1965, and running through April 7, 1968.
Note on Lum:
= 2, luminosity class I and II
= 3, luminosity class III
= 4, luminosity class IV
= 5, luminosity class V
= 6, luminosity class c
= 7, luminosity class g
= 8, luminosity class d
Note on HR:
The HR/BS number is provided if identified in the Yale Catalog
of Bright Stars, Third edition (1964).
Note on GC:
The GC number is provided if identified in the Boss General
Catalog of 33342 Stars for the Epoch 1950 (1937; Cat. <I/113>).
Note on DM:
The DM number is provided if identified in the Smithsonian
Astrophysical Observatory (SAO) Star Catalog (1966; Cat. <I/131>).
Note on GCVS:
The star name is provided if identified in the General Catalog
of Variable Stars, Volumes 1 and 2 (1958).
Note on dRA, dDE:
These are the position differences, infrared catalog-SAO Star Catalog or,
if no SAO identification is available, the position difference, infrared
catalog-variable star catalog.
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Byte-by-byte Description of file: chisq.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- IRC Two-Micron Sky Survey number (TMSS)
7- 8 I2 --- o_IRC *Total number of obs. of this star
10- 14 F5.2 mag Kmag K magnitude of star
15- 18 F4.2 mag e_Kmag Standard deviation of K magnitude
19- 23 F5.2 mag Imag *I magnitude of star
24- 27 F4.2 mag e_Imag *Standard deviation of I magnitude
28 I1 --- f_Imag *[0,1] I magnitude questionable
30- 36 I7 d JD Julian date of observation
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Note on o_IRC:
This number is repeated in each record containing data for this star.
Note on Imag:
Ignore if I magnitude > 14.0.
Note on e_Imag:
Ignore if I magnitude > 14.0 or if f_Imag (byte 28) = 1.
Note on f_Imag:
= 1, if I magnitude is questionable; = 0, otherwise
If f_Imag is 1, then the standard deviation given in bytes 24-27
should be ignored.
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Byte-by-byte Description of file: remarks.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- IRC Two-Micron Sky Survey number (TMSS)
9- 78 A70 --- Text Text of remark
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History:
* July 1979, by Theresa A. Nagy:
The Two-Micron Sky Survey Catalogue by G. Neugebauer and R. B. Leighton
was published in 1969 as a National Aeronautics and Space
Administration (NASA) special publication (NASA SP-3047).
A computer program was written to perform the following operations on
the original version of the catalogue:
- Convert all "&" to "+"
- Concatenate left- and right-hand pages into a single data record
per entry
- Delete catalogue number from the right-hand page data
- Add a sequential counter for each record
- Combine all entries from 12 original files into a single file
for data in catalogue
- Combine all measurements of chi-square excess stars from the
12 original files into a single sequential file
- Compute and include right ascension and declination in radians at
the end of each record in data file
- Combine all remarks from the 12 original files into a single
sequential file
- Reblock main catalogue from 84 bytes to 17000
- Change logical record length from 84 to 170 to accommodate
re-organization
* 27-Mar-1999, by Francois Ochsenbein [CDS]:
the chisq.dat file, originally made of 1068 lines of up to 3 records
per line, was rearranged as 2574 single-record lines.
Acknowledgements:
The original ADC documentation (1991) by Theresa A. Nagy was used to
create this ReadMe file. She also did the original data reformatting.
References:
Boss B. 1937, General Catalogue of 33342 Stars for the Epoch 1950,
Carnegie Inst. of Washington (Cat. <I/113>)
Hoffleit D. 1964, The Bright Star Catalogue, 3rd Revised Edition (New
Haven, Yale University Observatory; see Cat. <V/50>)
Johnson H.L., 1962, Astrophys. Journal, 135, 69.
=1962ApJ...135...69J
Johnson H.L., 1964, Boletin Tonantzintla y Tacubaya, 3, 305.
=1964BOTT....3..305J
Johnson H.L., Mitchell R.I., Iriarte B., Wisniewski W.Z., 1966,
Comm. Lunar Planet. Lab., vol. 4, No. 63, 99.
=1966CoLPL...4...99J, Cat. <II/5>
Kron G.E., White H.S., Gascoigne S.C.B., 1953, Astrophys. Journal,
118, 502 =1953ApJ...118..502K
Kukarkin B.V., Parenago P.P., Efremov Y.U.I., Gol'opov P.N., 1958,
General Catalog of Variable Stars, vols 1 and 2, Academy of
Sciences of the U.S.S.R. (Moscow) (see Cat. <II/139>)
Neugebauer G., Martz D.E., Leighton R.B., Astrophys. Journal, 1965,
142, 399 =1965ApJ...142..399N
Smithsonian Astrophysical Observatory Star Catalog, Smithsonian
Institution, 1966 (see Cat. <I/131>)
Ulrich B.T., Neugebauer G., McCammon D., Leighton R.B., Hughes E.E.,
Becklin E., 1966, Astrophys. Journal, 146, 288.
=1966ApJ...146..288U
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(End) Melissa C. Larkin [SSDOO/ADC], rev. Francois Ochsenbein [CDS] 27-May-1997