ASTROSAT CZTI

Data Quality Report

Orbit 04781

Creation date: 2024-06-27T14:47:11.034324
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1SLEW_01234_9000000603_04781cztM0_level2.evt modeM0/AS1SLEW_01234_9000000603_04781cztM0_level2_quad_clean.evt
Size (bytes)40,340,1601,431,360
Size38.5 MB 1.4 MB
Events in quadrant A241,2841,378
Events in quadrant B227,5101,437
Events in quadrant C502,0921,209
Events in quadrant D218,9511,346

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010200
B09370
C017810
D08910

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4208520.238095%
B42010.238095%
C4209622.857143%
D42000.000000%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 420 420 0 0 0.00% 0.00%
B 420 420 0 0 0.00% 0.00%
C 420 420 78 78 18.57% 18.57%
D 420 420 0 0 0.00% 0.00%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 14 111 55617 4656.36 47 46 11.9
A 15 14 2214 181.66 47 46 11.9
A 8 15 1529 124.26 47 46 11.9
B 14 167 31171 2596.03 49 47 12.0
B 15 204 3783 311.62 49 47 12.0
B 4 80 871 68.73 49 47 12.0
C 14 48 323044 25763.68 45 45 12.5
C 9 237 1551 120.12 45 45 12.5
C 13 61 375 26.32 45 45 12.5
D 11 132 32659 2380.91 49 47 13.7
D 2 234 957 66.44 49 47 13.7
D 14 226 575 38.55 49 47 13.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter