ASTROSAT CZTI

Data Quality Report

Orbit 45400

Creation date: 2024-11-13T00:40:47.409005
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_038T01_9000006076_45400cztM0_level2.fits modeM0/AS1A13_038T01_9000006076_45400cztM0_level2_quad_clean.evt
Size (bytes)520,404,480108,789,120
Size496.3 MB 103.7 MB
Events in quadrant A5,654,913734,611
Events in quadrant B3,239,249774,849
Events in quadrant C3,870,956709,878
Events in quadrant D6,002,689628,530

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213332
B0139882
C0160422
D0223202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63952453.831118%
B6395921.438624%
C63953445.379203%
D63956299.835809%

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 7545 6395 26 26 0.34% 0.41%
B 7545 6395 19 19 0.25% 0.30%
C 7545 6395 287 287 3.80% 4.49%
D 7545 6396 543 543 7.20% 8.49%

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 2691793 17641.06 739 724 152.5
A 9 191 54916 355.25 739 724 152.5
A 10 255 19642 124.02 739 724 152.5
B 5 255 141554 971.37 743 721 145.0
B 10 3 53754 365.78 743 721 145.0
B 4 67 44306 300.62 743 721 145.0
C 12 2 924632 5446.51 722 725 169.6
C 3 233 67654 394.55 722 725 169.6
C 0 207 21243 120.96 722 725 169.6
D 13 249 1494036 8401.45 712 690 177.7
D 1 52 1100380 6186.77 712 690 177.7
D 2 249 466843 2622.54 712 690 177.7

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