ASTROSAT CZTI

Data Quality Report

Orbit 47340

Creation date: 2024-06-30T01:16:04.619863
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/AS1A13_093T09_9000006320_47340cztM0_level2.fits modeM0/AS1A13_093T09_9000006320_47340cztM0_level2_quad_clean.evt
Size (bytes)708,612,48084,997,440
Size675.8 MB 81.1 MB
Events in quadrant A6,690,825661,168
Events in quadrant B3,134,086689,979
Events in quadrant C2,856,990668,540
Events in quadrant D13,056,863112,800

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241563
B0137571
C0131201
D0431751

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63252493.936759%
B6325751.185771%
C6326410.648119%
D6326528583.544104%

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 7270 6326 77 77 1.06% 1.22%
B 7270 6326 11 11 0.15% 0.17%
C 7271 6327 11 11 0.15% 0.17%
D 7270 6325 3887 3887 53.47% 61.45%

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 10 83 3653105 25317.41 687 672 144.3
A 9 191 304781 2107.98 687 672 144.3
A 15 235 35058 238.35 687 672 144.3
B 0 190 128769 933.42 694 671 137.2
B 0 198 52800 379.85 694 671 137.2
B 0 183 41438 297.06 694 671 137.2
C 0 207 117937 719.8 686 690 162.9
C 3 233 32784 197.03 686 690 162.9
C 1 3 14415 84.26 686 690 162.9
D 12 2 9558752 149286.7 249 240 64.0
D 6 112 2407888 37603.12 249 240 64.0
D 2 249 38110 591.46 249 240 64.0

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