ASTROSAT CZTI

Data Quality Report

Orbit 04722

Creation date: 2024-06-27T14:46:01.976307
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/AS1G05_227T01_9000000592_04722cztM0_level2.evt modeM0/AS1G05_227T01_9000000592_04722cztM0_level2_quad_clean.evt
Size (bytes)540,521,28075,885,120
Size515.5 MB 72.4 MB
Events in quadrant A3,390,213445,506
Events in quadrant B3,906,978448,278
Events in quadrant C3,313,855456,987
Events in quadrant D5,248,417423,572

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155883
B0167402
C0153902
D0210382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7522470.624834%
B7522640.850838%
C7522370.491890%
D75221752.326509%

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 7982 7523 7 7 0.09% 0.09%
B 7982 7523 10 10 0.13% 0.13%
C 7982 7523 0 0 0.00% 0.00%
D 7982 7523 111 111 1.39% 1.48%

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 0 118 64114 357.93 851 832 176.8
A 0 226 15007 80.18 851 832 176.8
A 5 158 14370 76.57 851 832 176.8
B 4 80 268654 1570.34 869 846 170.5
B 14 167 130711 761.49 869 846 170.5
B 15 204 60980 352.61 869 846 170.5
C 8 128 16312 79.27 835 840 195.2
C 9 221 13903 66.93 835 840 195.2
C 9 247 9360 43.65 835 840 195.2
D 2 63 1193502 5948.03 819 794 200.5
D 13 235 328889 1636.21 819 794 200.5
D 1 31 190435 945.74 819 794 200.5

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