ASTROSAT CZTI

Data Quality Report

Orbit 20221224_A12_054T02_9000005444_level2

Creation date: 2022-12-29T15:53:35.162105
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/AS1A12_054T02_9000005444cztM0_level2.fits modeM0/AS1A12_054T02_9000005444cztM0_level2_quad_clean.evt
Size (bytes)2,159,398,0802,417,880,960
Size2.0 GB 2.3 GB
Events in quadrant A13,378,41815,745,470
Events in quadrant B12,737,40215,532,542
Events in quadrant C12,959,47214,754,140
Events in quadrant D9,766,80010,673,245

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09040
B09040
C09040
D09040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05268530
B04969100
C05025760
D011960200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049260
B049260
C049260
D049260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A24126713960.578612%
B24126810820.448464%
C2412698840.366396%
D2412656921528.688372%

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 329853 241266 0 0 0.00% 0.00%
B 329853 241245 0 0 0.00% 0.00%
C 329853 241257 0 0 0.00% 0.00%
D 329853 241032 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 9 19 11240 9.24 3491 3287 860.7
A 7 110 10993 8.95 3491 3287 860.7
A 0 29 10716 8.63 3491 3287 860.7
B 2 9 11061 12.15 3370 3224 645.1
B 3 80 9726 10.08 3370 3224 645.1
B 3 17 8897 8.79 3370 3224 645.1
C 1 81 10957 8.97 3420 3210 863.7
C 1 80 10457 8.39 3420 3210 863.7
C 3 202 10217 8.11 3420 3210 863.7
D 10 189 7195 6.17 2796 2544 753.2
D 7 3 7151 6.12 2796 2544 753.2
D 4 160 7017 5.94 2796 2544 753.2

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