ASTROSAT CZTI

Data Quality Report

Orbit 45295

Creation date: 2024-06-27T23:12:04.599025
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/AS1A13_073T04_9000006066_45295cztM0_level2.fits modeM0/AS1A13_073T04_9000006066_45295cztM0_level2_quad_clean.evt
Size (bytes)451,042,560102,850,560
Size430.1 MB 98.1 MB
Events in quadrant A5,493,887674,480
Events in quadrant B3,064,826706,600
Events in quadrant C3,405,213663,139
Events in quadrant D4,229,024617,776

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211411
B0137241
C0148891
D0170871

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64771993.072410%
B6478610.941649%
C64782113.257178%
D64781862.871257%

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 7342 6477 92 92 1.25% 1.42%
B 7343 6478 25 25 0.34% 0.39%
C 7343 6478 194 194 2.64% 2.99%
D 7343 6478 173 173 2.36% 2.67%

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 2397394 16548.86 698 683 144.8
A 10 248 356292 2455.42 698 683 144.8
A 13 248 16847 111.61 698 683 144.8
B 5 32 97675 707.96 704 682 137.0
B 5 172 38077 272.95 704 682 137.0
B 0 186 37823 271.1 704 682 137.0
C 14 254 669374 4113.29 690 692 162.6
C 3 233 17472 103.22 690 692 162.6
C 3 160 8830 50.06 690 692 162.6
D 2 249 932358 5385.69 692 672 173.0
D 1 52 262845 1515.51 692 672 173.0
D 13 171 171756 988.97 692 672 173.0

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