ASTROSAT CZTI

Data Quality Report

Orbit 32294

Creation date: 2024-06-27T20:38:31.954477
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_005T01_9000004700_32294cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32294cztM0_level2_quad_clean.evt
Size (bytes)381,165,12059,155,200
Size363.5 MB 56.4 MB
Events in quadrant A2,153,185392,495
Events in quadrant B3,536,432390,992
Events in quadrant C2,735,201358,563
Events in quadrant D2,840,463360,154

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A088242
B0132611
C0107351
D0109831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4096611.489258%
B40961563.808594%
C40963618.813477%
D40961082.636719%

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 5376 4097 0 0 0.00% 0.00%
B 5376 4097 1 1 0.02% 0.02%
C 5376 4097 96 96 1.79% 2.34%
D 5376 4097 40 40 0.74% 0.98%

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 12 96 27481 244.14 550 539 110.4
A 13 254 7812 65.91 550 539 110.4
A 3 137 5443 44.44 550 539 110.4
B 6 159 1142406 10934.11 545 532 104.4
B 0 190 145781 1390.84 545 532 104.4
B 0 168 45385 429.49 545 532 104.4
C 15 208 384811 3229.23 512 516 119.0
C 14 238 123212 1031.01 512 516 119.0
C 0 10 79407 662.92 512 516 119.0
D 8 195 696439 5577.63 525 512 124.8
D 2 250 50014 396.74 525 512 124.8
D 12 233 40067 317.02 525 512 124.8

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