ASTROSAT CZTI

Data Quality Report

Orbit 43291

Creation date: 2024-06-27T22:50:14.793712
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/AS1A12_089T01_9000005864_43291cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43291cztM0_level2_quad_clean.evt
Size (bytes)419,279,04096,168,960
Size399.9 MB 91.7 MB
Events in quadrant A4,765,588612,516
Events in quadrant B2,933,104666,315
Events in quadrant C2,800,706644,179
Events in quadrant D4,555,995570,805

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179922
B0127602
C0121342
D0175462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59804828.060201%
B5979490.819535%
C597930.050176%
D59793175.301890%

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 7292 5981 416 416 5.70% 6.96%
B 7291 5980 27 27 0.37% 0.45%
C 7291 5980 1 1 0.01% 0.02%
D 7291 5980 293 293 4.02% 4.90%

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 15 237 1437088 10973.24 630 618 130.9
A 10 83 677750 5172.63 630 618 130.9
A 12 189 120594 916.5 630 618 130.9
B 0 186 158045 1244.48 652 634 126.5
B 5 172 57947 453.11 652 634 126.5
B 0 190 47473 370.31 652 634 126.5
C 15 214 255492 1693.62 639 642 150.5
C 3 233 14126 89.61 639 642 150.5
C 14 254 12282 77.35 639 642 150.5
D 1 52 939198 6060.18 625 607 154.9
D 2 249 326458 2103.91 625 607 154.9
D 12 233 285445 1839.11 625 607 154.9

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