ASTROSAT CZTI

Data Quality Report

Orbit 12982

Creation date: 2024-06-27T16:34:43.824876
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/AS1G08_055T01_9000001912_12982cztM0_level2.evt modeM0/AS1G08_055T01_9000001912_12982cztM0_level2_quad_clean.evt
Size (bytes)278,291,52052,416,000
Size265.4 MB 50.0 MB
Events in quadrant A1,863,421347,110
Events in quadrant B2,366,899314,024
Events in quadrant C1,730,046352,869
Events in quadrant D2,234,467330,996

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075282
B092191
C072271
D087491

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3410220.645161%
B341043212.668622%
C3410270.791789%
D34101684.926686%

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 4715 3412 0 0 0.00% 0.00%
B 4715 3412 107 107 2.27% 3.14%
C 4715 3411 0 0 0.00% 0.00%
D 4715 3411 110 110 2.33% 3.22%

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 12 189 88717 971.23 446 438 90.9
A 8 15 29154 315.93 446 438 90.9
A 1 162 14601 155.82 446 438 90.9
B 4 239 465538 6081.07 406 397 76.5
B 0 85 178698 2331.04 406 397 76.5
B 3 64 60014 779.41 406 397 76.5
C 13 61 3211 27.08 442 444 102.2
C 12 4 2166 16.86 442 444 102.2
C 3 202 1143 6.84 442 444 102.2
D 1 52 509972 4929.74 429 419 103.4
D 8 195 73783 709.77 429 419 103.4
D 13 122 16602 156.56 429 419 103.4

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