ASTROSAT CZTI

Data Quality Report

Orbit 47230

Creation date: 2024-06-27T23:33:09.855932
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/AS1C09_005T01_9000006304_47230cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47230cztM0_level2_quad_clean.evt
Size (bytes)517,219,200108,535,680
Size493.3 MB 103.5 MB
Events in quadrant A7,956,408700,282
Events in quadrant B4,263,595723,897
Events in quadrant C2,962,707739,581
Events in quadrant D3,458,145668,572

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0283662
B0170582
C0134832
D0148692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65105458.371736%
B65104697.204301%
C6510550.844854%
D65101141.751152%

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 7600 6511 328 328 4.32% 5.04%
B 7599 6509 339 339 4.46% 5.21%
C 7599 6509 12 12 0.16% 0.18%
D 7599 6509 67 67 0.88% 1.03%

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 10 83 3587123 23946.26 719 702 149.8
A 9 191 1568719 10469.53 719 702 149.8
A 7 3 13816 87.56 719 702 149.8
B 15 201 810054 5860.19 714 692 138.1
B 5 32 297084 2146.03 714 692 138.1
B 0 190 115076 828.2 714 692 138.1
C 14 254 72116 411.55 739 741 173.4
C 13 61 4968 24.37 739 741 173.4
C 1 3 4778 23.28 739 741 173.4
D 10 181 314501 1721.92 733 710 182.2
D 2 249 260246 1424.2 733 710 182.2
D 2 234 28802 154.15 733 710 182.2

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