ASTROSAT CZTI

Data Quality Report

Orbit 13009

Creation date: 2024-06-27T16:35:01.665348
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/AS1T02_002T01_9000001914_13009cztM0_level2.evt modeM0/AS1T02_002T01_9000001914_13009cztM0_level2_quad_clean.evt
Size (bytes)490,717,440124,277,760
Size468.0 MB 118.5 MB
Events in quadrant A3,335,509835,755
Events in quadrant B4,559,865786,377
Events in quadrant C2,987,577861,821
Events in quadrant D3,524,280813,927

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144923
B0180822
C0136162
D0151382

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6687360.538358%
B668767310.064304%
C668790.134590%
D66871211.809481%

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 7778 6689 16 16 0.21% 0.24%
B 7778 6688 350 350 4.50% 5.23%
C 7778 6689 0 0 0.00% 0.00%
D 7778 6689 96 96 1.23% 1.44%

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 12 189 153039 986.35 771 754 154.4
A 15 174 62356 398.99 771 754 154.4
A 15 223 48597 309.88 771 754 154.4
B 4 239 1355629 10007.81 720 701 135.4
B 0 219 126486 929.07 720 701 135.4
B 3 64 77181 564.9 720 701 135.4
C 0 207 6668 33.53 764 770 175.9
C 13 61 5499 26.88 764 770 175.9
C 8 222 2263 8.49 764 770 175.9
D 1 52 655039 3686.87 748 728 177.5
D 2 234 23538 128.53 748 728 177.5
D 8 195 23499 128.31 748 728 177.5

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