ASTROSAT CZTI

Data Quality Report

Orbit 45503

Creation date: 2024-06-27T23:12:58.263025
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/AS1A13_054T01_9000006098_45503cztM0_level2.fits modeM0/AS1A13_054T01_9000006098_45503cztM0_level2_quad_clean.evt
Size (bytes)509,935,680113,417,280
Size486.3 MB 108.2 MB
Events in quadrant A5,832,730763,925
Events in quadrant B3,423,406807,525
Events in quadrant C3,247,145774,720
Events in quadrant D5,877,372642,453

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218332
B0144142
C0138092
D0219499

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63892804.382532%
B63891622.535608%
C6389831.299108%
D638876912.038197%

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 7589 6390 30 30 0.40% 0.47%
B 7589 6390 33 33 0.43% 0.52%
C 7589 6390 20 20 0.26% 0.31%
D 7588 6388 486 486 6.40% 7.61%

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 2786401 17195.19 780 764 162.0
A 2 79 12792 74.25 780 764 162.0
A 13 248 11726 67.67 780 764 162.0
B 12 16 201222 1293.88 787 766 154.9
B 0 186 32373 204.01 787 766 154.9
B 4 170 25243 157.99 787 766 154.9
C 14 254 143329 778.22 782 789 183.2
C 3 233 23259 122.68 782 789 183.2
C 12 2 21490 113.02 782 789 183.2
D 1 52 1787490 9756.71 733 711 183.1
D 11 241 484210 2640.15 733 711 183.1
D 13 249 437295 2383.97 733 711 183.1

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