Eighth Catalogue of the Orbital Elements of Spectroscopic Binary Systems
Alan H. Batten, J. Murray Fletcher, & D. G. MacCarthy
Dominion Astrophysical Observatory
Victoria, British Columbia, Canada
The original machine-readable catalog consists of two files:
1.
The data file, consisting of 1469 x 240-byte records.
2.
The remarks file, which is in TeX format
(Note: This remarks file has been converted to a series of HTML
files)
The following table gives a brief format description of the original data
file
(followed by modified format).
Fd Datum
Byte(s) Comments/Occurrences
Format
----------------------------------------------------------------------1 SB8 number
1- 4 Sequential number
I4
2 RAH B1900.0
6- 7 hours of time
I2
3 RAM
8- 10 minutes of time
F3.1
4 DECD B1900.0 11- 13 degrees of arc
I3 (A1,I2)
5 DECM
14- 15 minutes of arc
I2
6 HD number
18- 26 Henry Draper number
A2,I7
7 HD comp.
27- 29 Letter designations
A3
8 DM prefix
32- 33 BD, CD, CP
A2
9 DM zone
34- 36 Declination zone
A3 (I3)
10 DM number
37- 41 Number within zone
A5 (I5)
11 DM suffix
42 DM supplemental identifier
A1
12 DM comp.
43- 44 Letter designations
A2
13 Other IDs
45- 57 Alternate designations
A13
14 Star name
59- 75 Flamsteed, Bayer, GCVS, etc.
A17
15 Remarks code
76 Asterisk (*)
A1
16 Primary mag. 78- 82 Type coded below
F5.2 (A5)
17 Mag. code
83 B, V, P, blank
A1
18 Remarks code
84 Asterisk (*)
A1
19 Sec. mag.
85- 89 As coded below
F5.2 (A5)
20 Mag. code
90 B, V, P, blank
A1
21 Remarks code
91 Asterisk (*)
A1
22 Sp.T.
92-107 Spectral type of primary
A16
23 Remarks code
108 Asterisk (*)
A1
24 Sp.T.
110-118 Spectral type secondary
A9
25 Remarks code
119 Asterisk (*)
A1
26 Period
121-130 Given in days or years
F10.4
27 P code
131 "y" if period in years
A1
28 Remarks code
132 Asterisk (*)
A1
29 Epoch
134-143 Given in days
F10.4
30 Remarks code
144 Asterisk (*)
A1
31 Omega code
145 Uncertainty code (=) omega1
A1
32 Omega1
146-150 Longitude of periastron (deg.)
F5.1
33 Remarks code
151 Asterisk (*)
A1
34 Omega2
152-156 Longitude of periastron (deg.)
F5.1
35 Remarks code
157 Asterisk (*)
A1
36 e1
158-161 Eccentricity
F4.2
37 Remarks code
162 Asterisk (*)
A1
38 e2
163-166 Eccentricity
F4.2
39 Remarks code
167 Asterisk (*)
A1
40 K1 code
168 Uncertainty code (=) for K1
A1
41 Semiamp.
169-173 K1 in km/s
F5.1
42 Remarks code
174 Asterisk (*)
A1
43 K2 code
175 Uncertainty code (=) for K2
A1
44 Semiamp.
176-180 K2 in km/s
F5.1
45 Remarks code
181 Asterisk (*)
A1
46 V01 code
182 Uncertainty code (=)
A1
47 V01
183-188 Systemic velocity in km/s
F6.1
48 Remarks code
189 Asterisk (*)
A1
49 V02
190-195 Systemic velocity in km/s
F6.1
50 Remarks code
196 Asterisk (*)
A1
51 Mass func.
198-204 Mass function in solar masses
E7.1
52 Primary mass 206-212 m1(sin**3)i in solar masses
E7.1
53 Sec. mass
214-220 m2(sin**3)i in solar masses
E7.1
54 a1sini
222-229 Semimajor axis (10**6 km)
E8.2
55 a2sini
231-238 Semimajor axis (10**6 km)
E8.2
56 Quality code
240 Overall quality of orbit
A1
---------------------------------------------------------------------Description prepared by Wayne H. Warren Jr., 1991 July 5
======================================================================
The data file format was modified for the MOSAIC version of the Eighth
Catalogue, such that each star now consists of two 144-byte records,
followed by a blank line. The file format is as follows:
Line 1:
Fd Datum
Byte(s) Comments/Occurrences
Format
----------------------------------------------------------------------1 SB8 number
1- 4 Sequential number
I4
2 RAH B1900.0
6- 7 hours of time
I2
3 RAM
8- 10 minutes of time
F3.1
4 DECD B1900.0 11- 13 degrees of arc
I3 (A1,I2)
5 DECM
14- 15 minutes of arc
I2
6 HD number
17- 25 Henry Draper number
A2,I7
7 HD comp.
26- 28 Letter designations
A3
8 Star name
31- 47 Flamsteed, Bayer, GCVS, etc.
A17
9 Primary mag. 49- 53 Type coded below
F5.2 (A5)
10 Mag. code
54 B, V, P, blank
A1
11 Remarks code
55 Asterisk (*)
A1
12 Sp.T.
57- 72 Spectral type of primary
A16
13 Remarks code
73 Asterisk (*)
A1
14 Period
75- 84 Given in days or years
F10.4
15 P code
85 "y" if period in years
A1
16 Remarks code
86 Asterisk (*)
A1
17 Omega code
88 Uncertainty code (=) omega1
A1
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Omega1
Remarks code
e1
Remarks code
K1 code
Semiamp.
Remarks code
V01 code
V01
Remarks code
Mass func.
Primary mass
a1sini
Quality code
89- 93
94
96- 99
100
102
103-107
108
110
111-116
117
119-125
127-133
135-142
144
Longitude of periastron (deg.)
Asterisk (*)
Eccentricity
Asterisk (*)
Uncertainty code (=) for K1
K1 in km/s
Asterisk (*)
Uncertainty code (=)
Systemic velocity in km/s
Asterisk (*)
Mass function in solar masses
m1(sin**3)i in solar masses
Semimajor axis (10**6 km)
Overall quality of orbit
F5.1
A1
F4.2
A1
A1
F5.1
A1
A1
F6.1
A1
E7.1
E7.1
E8.2
A1
Line 2:
Fd Datum
Byte(s) Comments/Occurrences
Format
----------------------------------------------------------------------1 DM prefix
17- 18 BD, CD, CP
A2
2 DM zone
19- 21 Declination zone
A3 (I3)
3 DM number
22- 26 Number within zone
A5 (I5)
4 DM suffix
27 DM supplemental identifier
A1
5 DM comp.
28- 29 Letter designations
A2
6 Other IDs
31- 46 Alternate designations
A16
7 Remarks code
47 Asterisk (*)
A1
8 Sec. mag.
49- 53 Type coded below
F5.2 (A5)
9 Mag. code
54 B, V, P, blank
A1
10 Remarks code
55 Asterisk (*)
A1
11 Sp.T.
57- 72 Spectral type secondary
A16
12 Remarks code
73 Asterisk (*)
A1
13 Epoch
75- 84 Given in days
F10.4
14 Remarks code
86 Asterisk (*)
A1
15 Omega2
89- 93 Longitude of periastron (deg.)
F5.1
16 Remarks code
94 Asterisk (*)
A1
17 e2
96- 99 Eccentricity
F4.2
18 Remarks code
100 Asterisk (*)
A1
19 K2 code
102 Uncertainty code (=) for K2
A1
20 Semiamp.
103-107 K2 in km/s
F5.1
21 Remarks code
108 Asterisk (*)
A1
22 V02
111-116 Systemic velocity in km/s
F6.1
23 Remarks code
117 Asterisk (*)
A1
24 Sec. mass
127-133 m2(sin**3)i in solar masses
E7.1
25 a2sini
135-142 Semimajor axis (10**6 km)
E8.2
====================================================================
W.I. Hartkopf, 1994 October 26