ASTROSAT CZTI

Data Quality Report

Orbit 05401

Creation date: 2024-06-27T14:54:47.338080
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/AS1G05_214T01_9000000684_05401cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05401cztM0_level2_quad_clean.evt
Size (bytes)477,982,08071,331,840
Size455.8 MB 68.0 MB
Events in quadrant A3,282,179427,402
Events in quadrant B3,466,403431,664
Events in quadrant C3,364,463428,912
Events in quadrant D3,901,821398,946

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144013
B0147372
C0144922
D0165522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6782721.061634%
B6782981.445001%
C6782550.810970%
D67822343.450310%

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 8867 6784 32 32 0.36% 0.47%
B 8867 6784 25 25 0.28% 0.37%
C 8867 6784 17 17 0.19% 0.25%
D 8867 6784 208 208 2.35% 3.07%

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 126307 763.54 800 780 164.4
A 0 50 34853 207.25 800 780 164.4
A 0 247 25656 151.31 800 780 164.4
B 15 204 119782 756.53 815 795 157.3
B 4 48 77486 487.61 815 795 157.3
B 0 219 39652 247.06 815 795 157.3
C 9 247 175412 950.3 782 785 183.8
C 1 16 111098 600.31 782 785 183.8
C 14 67 17168 89.15 782 785 183.8
D 2 63 727822 3824.04 766 741 190.1
D 2 16 111554 582.81 766 741 190.1
D 8 195 55640 288.74 766 741 190.1

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