ASTROSAT CZTI

Data Quality Report

Orbit 05993

Creation date: 2024-06-27T15:01:34.942220
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/AS1G06_086T01_9000000774_05993cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05993cztM0_level2_quad_clean.evt
Size (bytes)478,742,400122,644,800
Size456.6 MB 117.0 MB
Events in quadrant A3,453,582813,361
Events in quadrant B3,360,287840,961
Events in quadrant C4,336,878814,408
Events in quadrant D2,895,228781,138

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151443
B0146362
C0174142
D0137612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6665410.615154%
B6665610.915229%
C66651652.475619%
D666590.135034%

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 7920 6666 11 11 0.14% 0.17%
B 7920 6666 15 15 0.19% 0.23%
C 7920 6666 93 93 1.17% 1.40%
D 7920 6666 5 5 0.06% 0.08%

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 15 234 502838 3316.49 748 729 151.4
A 14 238 28326 182.28 748 729 151.4
A 10 253 23375 149.58 748 729 151.4
B 15 204 101806 699.13 768 750 144.5
B 0 219 72641 497.36 768 750 144.5
B 0 214 59670 407.62 768 750 144.5
C 1 241 1432060 8469.27 736 739 169.0
C 1 16 23316 133.59 736 739 169.0
C 12 4 7809 41.83 736 739 169.0
D 12 221 34035 189.77 727 704 175.6
D 2 14 28011 155.47 727 704 175.6
D 5 97 24414 134.99 727 704 175.6

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