previous images (v7Lrkn)
previous images (v7L)
There are periodic increases in 2-4 keV flux after 56050 MJD. It is systematic
due to insuficcient calibration of A-camera No.2. Its 4-10 and 10-20 keV bands are correct.
This camera observes Sco X-1 in 7 days out of 70days (ISS orbital precession cycle).
There is a flux drop in 2-4 keV and an increase in 10-20 keV in 56470-56500 MJD.
It is systematic due to gas leakage (gas-gain rise) of A-camera No.0.
There is a flux drop in 2-4, 4-10, and 10-20 keV around 57010 MJD (2014.12.19).
It is due to a series of bad scans due to a bad combination of scan direction and sun avoidance.
The data is updated in every 4 hours.
The data was processed with version 7L, where both 1650V and 1550V data
are used. A-system camera 0 (gas leaking camera) and A-system camera 3
and B-system camera 0 (degraded cameras) are also used.
The coverage is increased. However, when A-system camera 0 is used until 57900 MJD,
the flux has a large uncertainty (a few tens of % in 2-4 keV).
Even in 4-10 keV, the data have larger uncertainty than those in
the other cameras.
After 57900 MJD, A-system Camera 0 is no-longer used in version 7L,
and the data have smaller error bars, although data gaps appears
for some sources.
Light curve Data
please visit v7l page for previous data.
README for light curve data