ASTROSAT CZTI

Data Quality Report

Orbit 18312

Creation date: 2024-06-27T17:48:11.707533
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/AS1A06_006T01_9000002720_18312cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18312cztM0_level2_quad_clean.evt
Size (bytes)526,420,80088,418,880
Size502.0 MB 84.3 MB
Events in quadrant A3,351,728567,323
Events in quadrant B3,547,971569,550
Events in quadrant C3,378,028554,638
Events in quadrant D5,218,489527,103

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138362
B0143632
C0139572
D0198583

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65791442.188782%
B65791722.614379%
C65791782.705578%
D65783815.792034%

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 7634 6580 0 0 0.00% 0.00%
B 7634 6580 5 5 0.07% 0.08%
C 7634 6580 0 0 0.00% 0.00%
D 7633 6579 306 306 4.01% 4.65%

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 0 226 7527 38.24 870 851 174.6
A 4 2 6807 34.12 870 851 174.6
A 12 194 6336 31.42 870 851 174.6
B 7 220 128642 774.21 863 840 165.1
B 0 197 18652 107.9 863 840 165.1
B 12 111 18483 106.88 863 840 165.1
C 14 238 128686 666.35 830 835 191.9
C 3 233 10445 50.09 830 835 191.9
C 13 61 5859 26.18 830 835 191.9
D 7 238 1208478 5935.05 839 817 203.5
D 13 168 467404 2293.04 839 817 203.5
D 1 52 329142 1613.55 839 817 203.5

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