ASTROSAT CZTI

Data Quality Report

Orbit 10799

Creation date: 2024-06-27T16:04:03.317770
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/AS1A03_071T01_9000001562_10799cztM0_level2.evt modeM0/AS1A03_071T01_9000001562_10799cztM0_level2_quad_clean.evt
Size (bytes)571,011,84093,689,280
Size544.6 MB 89.3 MB
Events in quadrant A3,116,833602,792
Events in quadrant B5,695,055597,243
Events in quadrant C3,090,629626,891
Events in quadrant D4,955,947562,573

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135323
B0213492
C0132952
D0191932

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6414731.138135%
B641479912.457125%
C6414661.028999%
D64145668.824447%

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 7584 6415 2 2 0.03% 0.03%
B 7584 6415 431 431 5.68% 6.72%
C 7584 6415 0 0 0.00% 0.00%
D 7584 6415 459 459 6.05% 7.16%

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 38576 235.88 792 776 160.2
A 14 254 12461 72.92 792 776 160.2
A 8 15 11443 66.57 792 776 160.2
B 4 239 1884836 13052.99 768 750 144.3
B 0 85 400800 2771.55 768 750 144.3
B 15 204 235836 1628.68 768 750 144.3
C 13 61 5779 27.48 790 794 181.4
C 14 234 5667 26.86 790 794 181.4
C 14 67 2909 11.66 790 794 181.4
D 9 85 590143 3265.0 755 737 180.5
D 13 138 439531 2430.69 755 737 180.5
D 10 253 362016 2001.29 755 737 180.5

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