ASTROSAT CZTI

Data Quality Report

Orbit 12071

Creation date: 2024-06-27T16:22:08.550874
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/AS1C03_015T01_9000001788_12071cztM0_level2.evt modeM0/AS1C03_015T01_9000001788_12071cztM0_level2_quad_clean.evt
Size (bytes)342,984,96097,608,960
Size327.1 MB 93.1 MB
Events in quadrant A2,374,108663,990
Events in quadrant B2,838,006662,348
Events in quadrant C2,220,301663,656
Events in quadrant D2,632,540633,927

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102330
B0114820
C096770
D0108380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4734230.485847%
B47341302.746092%
C473420.042248%
D4734420.887199%

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 4735 4735 8 8 0.17% 0.17%
B 4735 4735 76 76 1.61% 1.61%
C 4735 4735 0 0 0.00% 0.00%
D 4735 4735 39 39 0.82% 0.82%

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 66512 566.74 573 561 116.4
A 1 162 29351 247.4 573 561 116.4
A 14 63 15787 130.84 573 561 116.4
B 4 239 462000 4368.36 568 554 105.6
B 15 204 108167 1018.74 568 554 105.6
B 0 219 22791 210.51 568 554 105.6
C 0 207 15925 118.77 565 567 129.3
C 13 61 4203 28.12 565 567 129.3
C 14 234 1570 7.75 565 567 129.3
D 1 52 321025 2440.09 559 545 131.3
D 8 195 77351 584.79 559 545 131.3
D 7 71 35340 264.92 559 545 131.3

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