|
DigitalGlobe was
granted a license by NOAA in December 2000 to operate a 0.5 meter
resolution satellite system. The company was able to modify its
plans for QuickBird 2 to increase the resolution of the satellite
from the originally planned 1-meter resolution imaging system to a
61-centimeter system by adjusting the orbit in which the satellite
is flown. The result is that the panchromatic resolution is
increased from 1-meter to 61-centimeter and multispectral is
increased from 4-meter to 2.5-meter resolution.
Digital images taken from orbit
are expected to rival
aerial photography in terms of both cost and possible economic and
scientific applications. QuickBird data will have a resolution
of 0.61 meter at nadir and 0.73 meter at 30° off-nadir for PAN
band, and 2.5 meter at nadir and 2.9 meter at 30° off-nadir. The
standard pan and multi resolutions for standard processed products
will be 70-centimeter and 3.0-meter respectively. Customers who
purchase unprocessed data can get imaging collection resolution of
up to 61-centimeter. QuickBird’s normal field of regards is up
to 30° off nadir. The revisit time varies with latitude; at 40°
Latitude North, it averages 3.5 days at up to 30° off-nadir angle
(corresponding to 0.73 meter resolution).
The satellite
will fly in a sun-synchronous polar orbit at an altitude of 450 km
(243 nmi). The lower orbit enables the spacecraft imaging camera
to distinguish ground objects 61 cm (24 inches) across. The 950 kg (2094 lbm) spacecraft was
manufactured by Ball Aerospace and Technologies, Corp., Boulder,
Colorado and was based on the Ball Commercial Platform 2000 (BCP
2000) satellite bus. QuickBird
has also been known as QuickBird 2.
In 1993, the
United States Department of Commerce granted DigitalGlobe's
predecessor, WorldView Imaging Corporation (WorldView). In January
1995, EarthWatch
Incorporated was formed in the merger of the commercial remote
sensing efforts of Ball Aerospace and WorldView. In September of
2001 EarthWatch changed its name to DigitalGlobe. The company has
previously launched EarlyBird and QuickBird 1, both of which were
lost. EarlyBird malfunctioned shortly after launch in late 1997;
while QuickBird 1 was destroyed in a launch failure in November
2000. Both were launched using Russian rockets. DigitalGlobe
selected Boeing's Delta 2 7320 to launch QuickBird, in March
2001.

| QuickBird
(2)
|
|
SATELLITE
|
| Int'l Designation |
2001 047A
|
Launched
|
| Owner / Sponsor |
DigitalGlobe
|
| Mission |
Remote
Sensing
|
| Satellite Bus |
Ball
Aerospace and Technologies, Corp.
|
BCP 2000
|
| Launch Mass |
950
kg (2094 lbm)
|
| Mission Orbit |
LEO /
450 km (243 nmi) circular
|
98°
|
| Design Life |
>
5 years
|
| Power (EOL) |
0.250
kW
|
|
LAUNCH
|
| Launch Vehicle
Model |
Delta
2 7320 |
| Launch Date / Time |
2001
Oct 18
|
18:51:26
|
|
Financial
|
| Satellite cost |
|
| Web Links |
QuickBird
Website
|
|