ASTROSAT CZTI

Data Quality Report

Orbit 30572

Creation date: 2024-06-27T20:17:09.058780
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_053T23_9000004404_30572cztM0_level2.evt modeM0/AS1A10_053T23_9000004404_30572cztM0_level2_quad_clean.evt
Size (bytes)541,532,16080,677,440
Size516.4 MB 76.9 MB
Events in quadrant A3,479,446525,881
Events in quadrant B4,889,636522,659
Events in quadrant C3,461,069484,486
Events in quadrant D4,158,952485,993

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137241
B0186001
C0139791
D0162481

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60701382.273476%
B60701402.306425%
C60711572.586065%
D60711532.520178%

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 7365 6072 40 40 0.54% 0.66%
B 7365 6072 4 4 0.05% 0.07%
C 7366 6073 19 19 0.26% 0.31%
D 7366 6073 100 100 1.36% 1.65%

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 12 96 202757 1208.29 847 833 167.1
A 13 254 10719 59.16 847 833 167.1
A 8 192 9004 48.89 847 833 167.1
B 6 159 1589624 10238.72 828 810 155.2
B 6 36 35712 224.92 828 810 155.2
B 12 111 18513 114.08 828 810 155.2
C 3 233 137241 751.99 783 789 181.5
C 14 238 129651 710.16 783 789 181.5
C 0 10 99531 544.17 783 789 181.5
D 5 222 562347 2979.32 810 792 188.5
D 8 195 257830 1363.71 810 792 188.5
D 13 249 85553 449.7 810 792 188.5

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