ASTROSAT CZTI

Data Quality Report

Orbit 45764

Creation date: 2024-06-27T23:15:54.613748
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/AS1T05_183T01_9000006124_45764cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45764cztM0_level2_quad_clean.evt
Size (bytes)650,825,280110,525,760
Size620.7 MB 105.4 MB
Events in quadrant A6,315,976769,158
Events in quadrant B7,565,113671,356
Events in quadrant C3,996,747771,551
Events in quadrant D5,716,307686,179

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0227993
B0270572
C0159062
D0213312

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64283765.849409%
B6429149523.254005%
C64292804.355265%
D64295428.430549%

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 7583 6429 20 20 0.26% 0.31%
B 7584 6430 899 899 11.85% 13.98%
C 7584 6430 149 149 1.96% 2.32%
D 7584 6430 330 330 4.35% 5.13%

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 10 83 2962644 17784.65 806 791 166.5
A 14 235 136010 811.93 806 791 166.5
A 13 248 60926 361.08 806 791 166.5
B 3 112 3544878 23994.85 754 731 147.7
B 5 172 306075 2067.26 754 731 147.7
B 0 190 191567 1292.01 754 731 147.7
C 14 254 359953 1962.44 786 794 183.0
C 14 96 349865 1907.31 786 794 183.0
C 3 233 99784 540.88 786 794 183.0
D 1 52 1249798 6439.91 781 760 194.0
D 13 249 844200 4348.69 781 760 194.0
D 2 249 173004 888.07 781 760 194.0

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