Sun Interference(Sun Outage) in Spring 2011
The sun passes behind a satellite as seen from its
ground station once a day during equinox season. When this happens,
radiation from the sun can cause loss or degradation of communications
between the satellite and the ground station. This kind of sun
interference, it is called " Sun Outage", can degrade or interrupt
their transmission.
The following observation is affected by sun outage (as of February 10, 2011):
- Observations are Cancelled.
March 4 - 8, 2011
F03
- Possibility of chipping or being halted.
March 2 - 3, 2011
March 9 -11, 2011
F03
Equinox Operation in Spring 2011
Likewise, the sun and the earth can lie in an
approximate line with a satellite during equinox season. When this
happens, solar light entering the satellite's imager-sensor can adversely
affect the sensor's calibration quality and cause deterioration of
image data.
Observation time and area of the images affected by solar light are
estimated as follows:
- (1) Observations cancelled by cause of solar light on the
imager(shown with "X (red
box)" in the table below).
April 3 - 22, 2011
N14
April 7 - 21, 2011
F15
- (2) Other than the observations above, parts of some images at
F14, N14, F15 and N15 from February 15 until April 26, 2011 may cause
partial degradation by solar light on the image (shown with "XXXXX (grey box)"
in the table below).
Updated: 4 February 2011
| Observation |
N13 |
F14 |
N14 |
F15 |
N15 |
F16 |
| UTC |
13:00-13:14 |
13:30-13:58 |
14:00-14:14 |
14:30-14:58 |
15:00-15:14 |
15:30-15:58 |
| Feb. 14 |
O |
O |
O |
O |
O |
O |
| Feb. 15 |
O |
O |
O |
FSE13 |
O |
O |
| Feb. 16 |
O |
O |
O |
FSE13 |
O |
O |
| Feb. 17 |
O |
O |
O |
FSE13 |
O |
O |
| Feb. 18 |
O |
O |
O |
FSE13 |
O |
O |
| Feb. 19 |
O |
O |
O |
FSE13 |
O |
O |
| Feb. 20 |
O |
O |
O |
FSE13 |
O |
O |
| Feb. 21 |
O |
O |
O |
FSE13 |
O |
O |
| Feb. 22 |
O |
O |
O |
FSE13 |
O |
O |
| Feb. 23 |
O |
FSW05 |
O |
FSE13 |
O |
O |
| Feb. 24 |
O |
FSW05 |
O |
FSE13 |
O |
O |
| Feb. 25 |
O |
FSW05 |
O |
FSE12 |
O |
O |
| Feb. 26 |
O |
FSW05 |
O |
FSE12 |
O |
O |
| Feb. 27 |
O |
FSW05 |
O |
FSE12 |
O |
O |
| Feb. 28 |
O |
FSW05 |
O |
FSE12 |
O |
O |
| Mar. 1 |
O |
FSW05 |
O |
FSE12 |
O |
O |
| Mar. 2 |
O |
FSW05 |
O |
FSE13 |
O |
O |
| Mar. 3 |
O |
FSW05 |
O |
FSE13 |
O |
O |
| Mar. 4 |
O |
FSW05 |
O |
FSE13 |
O |
O |
| Mar. 5 |
O |
FSW06 |
O |
FSE13 |
O |
O |
| Mar. 6 |
O |
FSW06 |
O |
FSE13 |
0 |
O |
| Mar. 7 |
O |
FSW06 |
O |
O |
O |
O |
| Mar. 8 |
O |
FSW06 |
O |
O |
O |
O |
| Mar. 9 |
O |
FSW06 |
O |
O |
O |
O |
| Mar. 10 |
O |
FSW05 |
O |
O |
HNE03 |
O |
| Mar. 11 |
O |
FSW05 |
O |
O |
HNE03 |
O |
| Mar. 12 |
O |
FSW05 |
O |
O |
HNE03 |
O |
| Mar. 13 |
O |
FSW05 |
O |
O |
HNE03 |
O |
| Mar. 14 |
O |
FSW05 |
O |
O |
HNE03 |
o |
| Mar. 15 |
O |
FSW04 |
O |
O |
HNE03 |
O |
| Mar. 16 |
O |
FSW04 |
O |
O |
HNE03 |
O |
| Mar. 17 |
O |
FSW04 |
O |
O |
HNE03 |
O |
| Mar. 18 |
O |
FSW04 |
O |
O |
HNE03 |
O |
| Mar. 19 |
O |
FSW04 |
O |
O |
HNE03 |
O |
| Mar. 20 |
O |
FCW03 |
O |
O |
HNE02 |
O |
| Mar. 21 |
O |
FCW03 |
O |
O |
HNE02 |
O |
| Mar. 22 |
O |
FCW03 |
O |
O |
HNE02 |
O |
| Mar. 23 |
O |
FCW03 |
O |
O |
HNE02 |
O |
| Mar. 24 |
O |
FCW03 |
O |
O |
HNE02 |
O |
| Mar. 25 |
O |
FNW02 |
O |
O |
HNE02 |
O |
| Mar. 26 |
O |
FNW02 |
O |
O |
HNE02 |
O |
| Mar. 27 |
O |
FNW02 |
O |
O |
HNE02 |
O |
| Mar. 28 |
O |
FNW02 |
O |
O |
HNE02 |
O |
| Mar. 29 |
O |
FNW02 |
O |
O |
HNE02 |
O |
| Mar. 30 |
O |
FNW02 |
O |
O |
HNE02 |
O |
| Mar. 31 |
O |
FNW02 |
O |
O |
HNE02 |
O |
| Apr. 1 |
O |
FNW02 |
O |
O |
HNE02 |
O |
| Apr. 2 |
O |
FNW02 |
O |
O |
HNE02 |
O |
| Apr. 3 |
O |
FNW02 |
X |
O |
HNE02 |
O |
| Apr. 4 |
O |
FNW01 |
X |
O |
HNE02 |
O |
| Apr. 5 |
O |
FNW01 |
X |
O |
HNE02 |
O |
| Apr. 6 |
O |
FNW01 |
X |
O |
HNE02 |
O |
| Apr. 7 |
O |
FNW01 |
X |
X |
HNE02 |
O |
| Apr. 8 |
O |
FNW01 |
X |
X |
HNE02 |
O |
| Apr. 9 |
O |
FNW01 |
X |
X |
HNE02 |
O |
| Apr. 10 |
O |
FNW01 |
X |
X |
HNE02 |
O |
| Apr. 11 |
O |
FNW01 |
X |
X |
HNE02 |
O |
| Apr. 12 |
O |
FNW01 |
X |
X |
HNE02 |
O |
| Apr. 13 |
O |
FNW01 |
X |
X |
HNE02 |
O |
| Apr. 14 |
O |
O |
X |
X |
O |
O |
| Apr. 15 |
O |
O |
X |
X |
O |
O |
| Apr. 16 |
O |
O |
X |
X |
O |
O |
| Apr. 17 |
O |
O |
X |
X |
O |
O |
| Apr. 18 |
O |
O |
X |
X |
O |
O |
| Apr. 19 |
O |
O |
X |
X |
O |
O |
| Apr. 20 |
O |
O |
X |
X |
O |
O |
| Apr. 21 |
O |
O |
X |
X |
O |
O |
| Apr. 22 |
O |
O |
X |
FNE09 |
O |
O |
| Apr. 23 |
O |
O |
HNW01 |
FNE09 |
O |
O |
| Apr. 24 |
O |
O |
HNW01 |
FNE09 |
O |
O |
| Apr. 25 |
O |
O |
HNW01 |
FNE09 |
O |
O |
| Apr. 26 |
O |
O |
O |
FNE09 |
O |
O |
| Apr. 27 |
O |
O |
O |
O |
O |
O |
| UTC |
13:00-13:14 |
13:30-13:58 |
14:00-14:14 |
14:30-14:58 |
15:00-15:14 |
15:30-15:58 |
| Observation |
N13 |
F14 |
N14 |
F15 |
N15 |
F16 |
Influence area of solar light
|
Full-disk |
|
Full-disk |
|
Hemisphere-disk |
| FNW01 |
 |
FSC08 |
 |
HNW01 |
 |
| FNW02 |
 |
FNE09 |
 |
HNE02 |
 |
| FCW03 |
 |
FSE10 |
 |
HNE03 |
 |
| FSW04 |
 |
FSE11 |
 |
|
|
| FSW05 |
 |
FSE12 |
 |
|
|
| FSW06 |
 |
FSE13 |
 |
|
|
| FSW07 |
 |
FCE14 |
 |
|
|
| Note |
 |
- F : Full-disk observation
- H : Hemisphere-disk observation
- S : South side area
- N : North side area
- E : East side area
- W : West side area
- C : Center area
- Number : fig Number
|
Reference