ASTROSAT CZTI

Data Quality Report

Orbit 47562

Creation date: 2024-07-14T21:18:33.286683
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_002T01_9000006334_47562cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47562cztM0_level2_quad_clean.evt
Size (bytes)449,087,040108,043,200
Size428.3 MB 103.0 MB
Events in quadrant A6,529,384724,557
Events in quadrant B3,085,127752,520
Events in quadrant C2,717,190720,684
Events in quadrant D3,822,803651,786

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234821
B0131071
C0123711
D0154741

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60482083.439153%
B6049370.611671%
C6049100.165317%
D60481682.777778%

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 7328 6049 34 34 0.46% 0.56%
B 7329 6050 6 6 0.08% 0.10%
C 7329 6050 2 2 0.03% 0.03%
D 7328 6049 131 131 1.79% 2.17%

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 3615505 25135.77 703 690 143.8
A 9 191 165704 1147.43 703 690 143.8
A 14 248 27714 187.91 703 690 143.8
B 0 190 93136 685.58 706 687 134.8
B 5 255 53769 393.64 706 687 134.8
B 0 200 53026 388.13 706 687 134.8
C 11 16 17553 105.18 688 693 160.3
C 3 233 9822 56.95 688 693 160.3
C 1 3 7503 42.48 688 693 160.3
D 2 165 390665 2290.2 686 665 170.3
D 2 249 258252 1512.63 686 665 170.3
D 4 222 234000 1370.21 686 665 170.3

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