ASTROSAT CZTI

Data Quality Report

Orbit 10524

Creation date: 2024-06-27T16:00:32.833332
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/AS1G07_051T02_9000001526_10524cztM0_level2.evt modeM0/AS1G07_051T02_9000001526_10524cztM0_level2_quad_clean.evt
Size (bytes)83,678,40024,635,520
Size79.8 MB 23.5 MB
Events in quadrant A582,275154,119
Events in quadrant B574,757155,384
Events in quadrant C581,542166,623
Events in quadrant D698,973166,962

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188
B02010
C02010
D0188

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107258123
B0113408786
C0110328282
D0111428229

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08446
B08444
C08446
D08144

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A130340.306984%
B127960.469116%
C137750.363108%
D143840.278164%

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 2967 1560 0 0 0.00% 0.00%
B 2967 1522 0 0 0.00% 0.00%
C 2966 1603 0 0 0.00% 0.00%
D 2965 1532 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 13 251 12825 404.88 144 141 31.3
A 3 80 9229 290.09 144 141 31.3
A 0 226 1356 38.78 144 141 31.3
B 4 239 8969 299.93 143 139 29.4
B 4 81 4811 158.69 143 139 29.4
B 12 111 3099 100.54 143 139 29.4
C 13 61 1133 27.04 148 148 36.4
C 14 234 692 14.94 148 148 36.4
C 14 67 566 11.48 148 148 36.4
D 8 195 86105 2261.74 153 148 38.0
D 2 16 23744 620.87 153 148 38.0
D 1 52 4527 115.22 153 148 38.0

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