ASTROSAT CZTI

Data Quality Report

Orbit 09066

Creation date: 2024-06-27T15:40:50.613211
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/AS1G07_070T02_9000001262_09066cztM0_level2.evt modeM0/AS1G07_070T02_9000001262_09066cztM0_level2_quad_clean.evt
Size (bytes)560,111,04099,912,960
Size534.2 MB 95.3 MB
Events in quadrant A5,384,112627,590
Events in quadrant B3,558,446643,233
Events in quadrant C3,301,592636,853
Events in quadrant D4,226,936612,811

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02106627
B01547914
C01487210
D0174839

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72521572.164920%
B72531231.695850%
C7254570.785773%
D72552152.963473%

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 7558 7260 7 7 0.09% 0.10%
B 7558 7259 32 32 0.42% 0.44%
C 7558 7260 1 1 0.01% 0.01%
D 7558 7260 144 144 1.91% 1.98%

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 8 5 2081599 11968.91 845 826 173.8
A 1 162 18247 100.21 845 826 173.8
A 13 251 11038 58.74 845 826 173.8
B 10 16 213439 1297.55 851 827 163.9
B 12 111 17884 104.09 851 827 163.9
B 11 111 14352 82.54 851 827 163.9
C 9 68 23947 119.54 832 838 193.3
C 8 128 10890 52.0 832 838 193.3
C 14 234 6529 29.44 832 838 193.3
D 1 52 653483 2945.2 823 804 221.6
D 2 14 99077 443.45 823 804 221.6
D 7 71 87401 390.77 823 804 221.6

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