ASTROSAT CZTI

Data Quality Report

Orbit 30526

Creation date: 2024-06-27T20:16:31.964380
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/AS1A10_053T14_9000004390_30526cztM0_level2.evt modeM0/AS1A10_053T14_9000004390_30526cztM0_level2_quad_clean.evt
Size (bytes)532,667,52086,420,160
Size508.0 MB 82.4 MB
Events in quadrant A3,177,632571,346
Events in quadrant B5,059,237559,341
Events in quadrant C3,864,899531,814
Events in quadrant D3,627,491539,234

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129531
B0191162
C0153511
D0142861

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5940741.245791%
B59402073.484848%
C59403876.515152%
D5940911.531987%

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 7160 5941 3 3 0.04% 0.05%
B 7160 5941 79 79 1.10% 1.33%
C 7160 5941 117 117 1.63% 1.97%
D 7160 5941 52 52 0.73% 0.88%

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 13 170 19409 114.67 815 800 162.3
A 8 192 12199 70.24 815 800 162.3
A 13 254 10614 60.48 815 800 162.3
B 6 159 1615018 10972.14 784 770 147.1
B 6 36 268347 1818.74 784 770 147.1
B 0 229 46496 310.8 784 770 147.1
C 10 22 534405 3113.09 741 750 171.4
C 14 238 163834 951.35 741 750 171.4
C 3 233 139614 810.06 741 750 171.4
D 8 195 240204 1194.11 779 769 200.5
D 12 233 132298 655.96 779 769 200.5
D 1 52 105387 521.75 779 769 200.5

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