ASTROSAT CZTI

Data Quality Report

Orbit 53370

Creation date: 2025-08-10T04:35:01.464464
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_011T09_9000006494_53370cztM0_level2.fits modeM0/AS1C09_011T09_9000006494_53370cztM0_level2_quad_clean.evt
Size (bytes)723,257,28091,500,480
Size689.8 MB 87.3 MB
Events in quadrant A3,710,289624,747
Events in quadrant B5,544,610666,881
Events in quadrant C9,488,866491,581
Events in quadrant D7,519,204527,100

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159682
B0210662
C0328162
D0268173

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65952934.442760%
B65954386.641395%
C6595173326.277483%
D659492414.012739%

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 7685 6596 173 173 2.25% 2.62%
B 7685 6596 213 213 2.77% 3.23%
C 7685 6596 1661 1661 21.61% 25.18%
D 7684 6595 882 882 11.48% 13.37%

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 15 174 707105 4183.37 683 665 168.9
A 3 61 63047 369.41 683 665 168.9
A 8 6 49948 291.84 683 665 168.9
B 10 254 1031580 7130.04 679 654 144.6
B 4 171 467003 3225.34 679 654 144.6
B 0 171 355801 2456.25 679 654 144.6
C 15 178 4181801 24474.9 622 616 170.8
C 15 224 1156065 6763.51 622 616 170.8
C 15 147 673559 3939.12 622 616 170.8
D 0 18 2665386 14508.46 651 623 183.7
D 11 245 1376533 7491.22 651 623 183.7
D 2 249 149859 812.52 651 623 183.7

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