ASTROSAT CZTI

Data Quality Report

Orbit 22111

Creation date: 2024-06-27T18:36:56.835150
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/AS1A07_007T04_9000003272_22111cztM0_level2.evt modeM0/AS1A07_007T04_9000003272_22111cztM0_level2_quad_clean.evt
Size (bytes)261,126,72059,592,960
Size249.0 MB 56.8 MB
Events in quadrant A1,859,828391,208
Events in quadrant B1,867,981397,768
Events in quadrant C1,854,597379,860
Events in quadrant D2,068,126369,164

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077741
B078171
C077991
D086141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3773160.424066%
B3773270.715611%
C3773501.325205%
D3773551.457726%

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 4593 3774 0 0 0.00% 0.00%
B 4593 3774 0 0 0.00% 0.00%
C 4593 3774 0 0 0.00% 0.00%
D 4593 3774 23 23 0.50% 0.61%

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 15 174 31937 325.66 470 460 96.7
A 5 16 13252 132.35 470 460 96.7
A 13 254 6748 65.06 470 460 96.7
B 0 190 13633 143.99 467 454 91.5
B 12 111 11056 115.83 467 454 91.5
B 3 64 11007 115.3 467 454 91.5
C 14 238 70135 649.76 451 454 107.2
C 10 22 19176 174.58 451 454 107.2
C 8 222 3366 27.15 451 454 107.2
D 2 133 104259 925.78 455 441 112.1
D 2 136 71207 631.04 455 441 112.1
D 13 172 45827 404.72 455 441 112.1

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