A1.0 CD-ROM organization
Last updated 31 Aug 1999
Version of this documentation for A2.0
Basic information about A1.0
Sites on the Internet where you can get
Ax.0 data
USNO site for 'Ax.0 and
derivatives'
C/C++ source code for extracting
Ax.0 data
Computing 'pseudo-V' magnitudes from Ax.0
R and B data
Recalibrating Ax.0 magnitudes
A1.0 zones listed in declination order
A1.0, disk #1
A1.0, disk #2
A1.0, disk #3
A1.0, disk #4
A1.0, disk #5
A1.0, disk #6
A1.0, disk #7
A1.0, disk #8
A1.0, disk #9
A1.0, disk #10
A1.0 zones, in declination order: The A1.0 (and A2.0) data are stored in zones, each 7.5 degrees high, numbered by distance from the south celestial pole ("SPD", "South Polar distance"). Thus, ZONE0000.CAT contains data from dec -90 to -82.5; ZONE0075 continues from -82.5 up to -75; and so on, up to ZONE1725 from +82.5 to +90.
This has two unfortunate consequences. First, the files near the celestial equator are enormous. Second, to fit the data on ten CDs with minimal waste, any concept of orderly organization had to be sacrificed.
To add further confusion, the order for A2.0 is not the same as that for A1.0.
Filename Size A1.0 disk A2.0 disk
ZONE0000 CAT 23940804 Disk 1 1
ZONE0075 CAT 86499480 Disk 1 1
ZONE0150 CAT 247207404 Disk 6 9
ZONE0225 CAT 385355688 Disk 5 7
ZONE0300 CAT 459786732 Disk 3 5
ZONE0375 CAT 488164140 Disk 2 4
ZONE0450 CAT 491863932 Disk 1 3
ZONE0525 CAT 441290820 Disk 4 2
ZONE0600 CAT 293644332 Disk 6 1
ZONE0675 CAT 284214300 Disk 5 6
ZONE0750 CAT 260319204 Disk 7 7
ZONE0825 CAT 241815672 Disk 10 10
ZONE0900 CAT 248398080 Disk 8 9
ZONE0975 CAT 261132696 Disk 7 8
ZONE1050 CAT 256708188 Disk 8 8
ZONE1125 CAT 243828024 Disk 9 11
ZONE1200 CAT 245276652 Disk 9 10
ZONE1275 CAT 228841956 Disk 4 11
ZONE1350 CAT 232368024 Disk 10 6
ZONE1425 CAT 193140024 Disk 3 4
ZONE1500 CAT 124534476 Disk 2 2
ZONE1575 CAT 72559692 Disk 6 3
ZONE1650 CAT 35518488 Disk 2 3
ZONE1725 CAT 9673512 Disk 3 2
Disk #1:
Volume in drive G is UA001
Directory of G:\
DEMO TAR 30720 09-23-96 11:51a
READ AST 8326 09-25-96 2:04p
READ ME 12242 10-29-96 8:49a
READ PHT 11096 09-25-96 2:06p
READ PMM 29134 09-25-96 2:07p
READ USE 6201 09-25-96 2:08p
ZONE0000 ACC 2880 09-20-96 2:41p
ZONE0000 CAT 23940804 09-20-96 2:42p
ZONE0075 ACC 2880 09-20-96 2:42p
ZONE0075 CAT 86499480 09-20-96 2:43p
ZONE0450 ACC 2880 09-20-96 3:15p
ZONE0450 CAT 491863932 09-20-96 3:25p
12 file(s) 602410575 bytes
0 bytes free
Disk #2:
Volume in drive G is UA002
Directory of G:\
CATALOG TAR 696320 09-22-96 5:30a
ZONE0375 ACC 2880 09-20-96 3:05p
ZONE0375 CAT 488164140 09-20-96 3:15p
ZONE1500 ACC 2880 09-20-96 4:32p
ZONE1500 CAT 124534476 09-20-96 4:34p
ZONE1650 ACC 2880 09-20-96 4:35p
ZONE1650 CAT 35518488 09-20-96 4:36p
7 file(s) 648922064 bytes
0 bytes free
Disk #3:
Volume in drive G is UA003
Directory of G:\
ZONE0300 ACC 2880 09-20-96 2:56p
ZONE0300 CAT 459786732 09-20-96 3:05p
ZONE1425 ACC 2880 09-20-96 4:28p
ZONE1425 CAT 193140024 09-20-96 4:32p
ZONE1725 ACC 2880 09-20-96 4:36p
ZONE1725 CAT 9673512 09-20-96 4:36p
6 file(s) 662608908 bytes
0 bytes free
Disk #4:
Volume in drive G is UA004
Directory of G:\
ZONE0525 ACC 2880 09-20-96 3:25p
ZONE0525 CAT 441290820 09-20-96 3:34p
ZONE1275 ACC 2880 09-20-96 4:19p
ZONE1275 CAT 228841956 09-20-96 4:24p
4 file(s) 670138536 bytes
0 bytes free
Disk #5:
Volume in drive G is UA005
Directory of G:\
ZONE0225 ACC 2880 09-20-96 2:48p
ZONE0225 CAT 385355688 09-20-96 2:56p
ZONE0675 ACC 2880 09-20-96 3:39p
ZONE0675 CAT 284214300 09-20-96 3:45p
4 file(s) 669575748 bytes
0 bytes free
Disk #6:
Volume in drive G is UA006
Directory of G:\
NEWBIN TAR 51640320 09-25-96 1:03p
ZONE0150 ACC 2880 09-20-96 2:43p
ZONE0150 CAT 247207404 09-20-96 2:48p
ZONE0600 ACC 2880 09-20-96 3:34p
ZONE0600 CAT 293644332 09-20-96 3:39p
ZONE1575 ACC 2880 09-20-96 4:34p
ZONE1575 CAT 72559692 09-20-96 4:35p
7 file(s) 665060388 bytes
0 bytes free
Disk #7:
Volume in drive G is UA007
Directory of G:\
PMMGSC LEN 408 09-25-96 1:07p
ZONE0000 LUT 762120 09-20-96 2:41p
ZONE0075 LUT 2242088 09-20-96 2:42p
ZONE0150 LUT 3838936 09-20-96 2:43p
ZONE0225 LUT 5262680 09-20-96 2:48p
ZONE0300 LUT 6527856 09-20-96 2:56p
ZONE0375 LUT 7934152 09-20-96 3:05p
ZONE0450 LUT 8263712 09-20-96 3:15p
ZONE0525 LUT 8244128 09-20-96 3:25p
ZONE0600 LUT 8242920 09-20-96 3:34p
ZONE0675 LUT 8083208 09-20-96 3:39p
ZONE0750 ACC 2880 09-20-96 3:45p
ZONE0750 CAT 260319204 09-20-96 3:50p
ZONE0750 LUT 7718528 09-20-96 3:45p
ZONE0825 LUT 7714600 09-20-96 3:50p
ZONE0900 LUT 8865872 09-20-96 3:55p
ZONE0975 ACC 2880 09-20-96 4:00p
ZONE0975 CAT 261132696 09-20-96 4:05p
ZONE0975 LUT 8096832 09-20-96 4:00p
ZONE1050 LUT 7923968 09-20-96 4:05p
ZONE1125 LUT 8172832 09-20-96 4:10p
ZONE1200 LUT 7940496 09-20-96 4:15p
ZONE1275 LUT 7738704 09-20-96 4:19p
ZONE1350 LUT 6902312 09-20-96 4:24p
ZONE1425 LUT 5206952 09-20-96 4:28p
ZONE1500 LUT 4068936 09-20-96 4:32p
ZONE1575 LUT 2933776 09-20-96 4:34p
ZONE1650 LUT 2069528 09-20-96 4:35p
ZONE1725 LUT 584552 09-20-96 4:36p
29 file(s) 666797756 bytes
0 bytes free
Disk #8:
Volume in drive G is UA008
Directory of G:\
BINARY TAR 77281280 09-25-96 1:01p
SG1 TAR 26511360 09-22-96 10:27a
ZONE0900 ACC 2880 09-20-96 3:55p
ZONE0900 CAT 248398080 09-20-96 3:59p
ZONE1050 ACC 2880 09-20-96 4:05p
ZONE1050 CAT 256708188 09-20-96 4:10p
6 file(s) 608904668 bytes
0 bytes free
Disk #9:
Volume in drive G is UA009
Directory of G:\
ZONE1125 ACC 2880 09-20-96 4:10p
ZONE1125 CAT 243828024 09-20-96 4:15p
ZONE1200 ACC 2880 09-20-96 4:15p
ZONE1200 CAT 245276652 09-20-96 4:19p
4 file(s) 489110436 bytes
0 bytes free
Disk #10:
Volume in drive G is UA010
Directory of G:\
ZONE0825 ACC 2880 09-20-96 3:50p
ZONE0825 CAT 241815672 09-20-96 3:55p
ZONE1350 ACC 2880 09-20-96 4:24p
ZONE1350 CAT 232368024 09-20-96 4:28p
4 file(s) 474189456 bytes
0 bytes free