ASTROSAT CZTI

Data Quality Report

Orbit 20231019_A10_094T37_9000005884_level2

Creation date: 2023-10-25T15:25:18.922731
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_094T37_9000005884cztM0_level2.fits modeM0/AS1A10_094T37_9000005884cztM0_level2_quad_clean.evt
Size (bytes)46,123,20062,942,400
Size44.0 MB 60.0 MB
Events in quadrant A362,770659,100
Events in quadrant B363,994680,712
Events in quadrant C96,38241,674
Events in quadrant D45,2202,434

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260960
B0193790
C0637570
D0490700

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74846388.524853%
B74844035.384821%
C7484742799.238375%
D7484748399.986638%

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 7784 7483 0 0 0.00% 0.00%
B 7784 7483 0 0 0.00% 0.00%
C 7783 7132 0 0 0.00% 0.00%
D 7783 6438 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 0 29 328 9.25 95 90 25.7
A 7 110 294 7.93 95 90 25.7
A 0 30 284 7.54 95 90 25.7
B 2 9 332 11.3 96 92 21.2
B 5 232 266 8.19 96 92 21.2
B 2 8 258 7.82 96 92 21.2
C 1 65 88 7.73 25 24 8.3
C 7 221 79 6.65 25 24 8.3
C 1 81 79 6.65 25 24 8.3
D 15 30 44 6.49 13 11 5.1
D 6 38 44 6.49 13 11 5.1
D 15 46 40 5.7 13 11 5.1

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