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- Every so often I notice inquiries regarding the acquisition of
- satellite image data. As such I figured I would post the latest
- information regarding EOSAT's Landsat Thematic Mapper data price
- schedule. The following information is taken from their Landsat
- Products and Services catalogue. There is no date on it but I
- believe it is the most recent issue.
-
- EOSAT's address is:
-
- EOSAT Customer Services Department
- 4300 Forbes Boulevard
- Lanham, Maryland 20706 U.S.A
-
- phone: 1-800-344-9933
- (in MD: 1-301-552-0537)
- telex: 277685 LSAT UR
- FAX: 1-301-552-0507
-
-
- Background: Landsat Thematic Mapper (TM) data has been acquired
- by the Landsat 4 and 5 series of satellites since 1982 (prior to
- that only MSS data from Landsats 1,2 & 3 are available since 1972).
- TM data is in 8-bit form (each pixel has a range of 0-255 grey
- scale) with a ground cell resolution of approximately 30m by 30m.
-
-
- EOSAT Landsat digital data is copywrited and thus cannot be
- copied or transferred in its original form once purchased. However,
- according to the back of the order form (section 2, statement b):
-
- "Purchaser agrees not to reproduce or permit reproduction of
- Satellite Data. Enhancement of Satellite Data is not
- considered reproduction"
-
- I'll leave it up to you to interpret that statement....
-
- EOSAT has several digital products available. The data is either
- in band sequential (BSQ) form or band interleave form (BIL).
-
- ---------------------------------------------------------------
-
- A: THEMATIC MAPPER STANDARD FULL AND QUADRANT SCENE DIGITAL
- PRODUCTS:
-
- These data sets come on 6250 (standard) or 6100 bpi computer
- compatible tapes (CCTs). A full TM scene covers an area of
- approximately 185 km E-W by 170 km N-S. Each scene is divided into
- four quads as follows:
-
- _ _ _ _ _ _______________________________
- | / / /|
- | fill / / / |
- | / 1 / 2 / |
- | / / / |
- | /_______________/______________/ |
- | / / / | /\
- | / / / | ||
- | / 3 / 4 / | 85 km
- | / / / fill | ||
- |/_______________/______________/_ _ _ _ _| \/
- <--- 95 km --->
-
- (note: parallelogram shape due to track of satellite relative to
- the ground)
-
- Each quarter scene covers 92.5 km E-W by 85 km N-S. Scenes are
- referred to by their corresponding position on the World
- Referencing System (WRS) by Path (= track) and Row (= location
- along track). A copy of the WRS map for both TM and MSS (they are
- different) is available *free* from EOSAT's Customer Service
- Department.
-
- The data has been geometrically corrected to a Space Oblique
- Mercator projection which resamples the ground resolution cell to
- 28.5 m (cubic convolution). They are also available in UTM
- projection (latitudes < 65 degrees) and Polar Stereographic
- Projection (latitudes > 65 degrees).
-
- The tapes come in Landsat Technical Working Group (LTWG) format.
- That is, each tape has a volume directory file plus 3 files for
- each band (leader file, image file, trailer file) for BSQ data (3
- files only for BIL data).
-
- PRICE SCHEDULE:
-
- 1. TM Standard Full Scene
-
- Size: 185 X 170 km Price: $3,600.00
-
- - Available as 4 quads or full frame in 6250 or 1600 bpi.
-
- 2. TM Digital Quadrant
-
- Size: 92.5 X 85 km Price: $1,800.00
-
- 3. TM Sample (Path 27, Row 33 - 9/3/82)
-
- Size: 185 X 170 km Price: $200.00
-
- - This is a sample data set of the above location. Yes, that is
- the correct price.
-
- ---------------------------------------------------------------
-
- B: GEOCODED IMAGE DATA
-
- Geocoded data sets are unenhanced digital images that have been
- processed to a simple relationship to a predetermined base map.
- Many projections are available (call EOSAT Customer Services for
- more info). These data sets are extremely useful for GIS
- operations.
-
- PRICE SCHEDULE:
- 1. Full scene
-
- Size: 185 X 170 km Price: $4,900.00
-
- 2. Quarter Scene (moveable anywhere within a full scene)
-
- Size: 92.5 X 80 km Price: $2,900.00
-
- 3. Map Sheet (0.5 X 1 degree)
-
- Size: ~55.5 X 91.2 km Price: $2,300.00
-
- ---------------------------------------------------------------
-
- C: CUSTOMER SELECTED THEMATIC MAPPER FLOPPY DISK DATA
-
- TM images of 512 X 512 pixels (15 X 15 km) are available in
- PC/MS DOS format 5.25 inch floppy diskettes for those of us who are
- PC bound (or poverty stricken). They come on 7 double sided double
- density (360 kb) diskettes (one for each image). Each diskette
- contains two files: the image file and a header file. The header
- file is in ASCII and thus is easily viewed. The image file is in
- sequential form.
-
- There are 6 sample data sets also available on floppy disk. For
- more information on these call EOSAT or refer to the catalogue.
-
- PRICE SCHEDULE:
-
- 1. TM digital-floppy disks
-
- Size: 15 X 15 km Price: $600.00
-
- 2. Sample TM floppy disk data products
-
- Size: 15 X 15 km Price: $250.00
-
- ----------------------------------------------------------------
-
- D: THEMATIC MAPPER MOVEABLE DIGITAL SUB-SCENES AND MINI-SCENES
-
- These are moveable subsections of 100 X 100 km (sub-scene) and
- 100 X 50 km (mini-scene) that are contained completely within a TM
- path. They are very handy for dealing with the basic rule that the
- area of interest lies at the boundary between two (or more) quads
- :-).
-
- Sub-scenes and mini-scenes are available on 6250 or 1600 bpi CCTs
- in BSQ format only. The mini-scenes can be oriented with the long
- axis either E-W or N-S. Subscenes that cross row boundaries are
- only available for data taken on the same date.
-
- PRICE SCHEDULE
-
- 1. Moveable sub-scene
-
- Size: 100 X 100 km Price: $2,600.00
-
- 2. Moveable mini-scene
-
- Size: 100 X 50 km Price: $2,000.00
-
- ----------------------------------------------------------------
-
- E. MULTI-SPECTRAL SCANNER (MSS) STANDARD DIGITAL PRODUCTS
-
- The MSS system is the predecessor to TM. Data from MSS acquired
- prior to Landsat 4 and 5 is available from the EROS data center in
- Sioux Falls, SD 57198 (1-800-367-2801).
-
- EOSAT handles MSS data from Landsats 4 and 5. The data is
- available in 4 spectral bands with 57 m pixel resolution (resampled
- from 79 m using cubic convolution). It is available in several
- formats, corrections and projection on 6250 or 1600 bpi CCTs only.
-
- PRICE SCHEDULE:
-
- 1. MSS standard digital product
-
- Size: ??? Price: $660.00
-
- 2. MSS sample digital product (path 37, row 34 - 10/11/82)
- (Utah / Arizona area)
-
- Size: ??? Price: $50.00
- ----------------------------------------------------------------
-
- F. TM AND MSS FILM PRODUCTS
-
- Thematic mapper and MSS images are also available in photographic
- form. For more information on these products contact EOSAT.
-
- ----------------------------------------------------------------
-
-
- Real BMWs have only two wheels
- ================================================================
- jay@chaos.unr.edu | I set out from Reno
- jay-m@unrvax.unr.edu | I was trailed by twenty hounds
- ================================================================
-
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-