ASTROSAT CZTI

Data Quality Report

Orbit 09341

Creation date: 2024-06-27T15:44:43.427386
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/AS1G07_022T01_9000001322_09341cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09341cztM0_level2_quad_clean.evt
Size (bytes)356,823,36053,196,480
Size340.3 MB 50.7 MB
Events in quadrant A2,754,626317,772
Events in quadrant B2,339,952340,711
Events in quadrant C2,846,480311,043
Events in quadrant D2,554,717321,203

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02115610177
B0177387765
C02280511298
D0197878987

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017468
B017278
C017565
D017577

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A44081934.378403%
B46421974.243860%
C43654339.919817%
D45632004.383081%

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 9047 5485 23 23 0.25% 0.42%
B 9044 5712 2 2 0.02% 0.04%
C 9045 5454 130 130 1.44% 2.38%
D 9045 5665 20 20 0.22% 0.35%

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 8 5 568529 5180.19 528 516 109.7
A 5 16 66086 597.99 528 516 109.7
A 13 251 28487 255.09 528 516 109.7
B 0 214 36971 329.84 564 549 110.4
B 0 219 32402 288.46 564 549 110.4
B 10 245 18676 164.16 564 549 110.4
C 4 254 870129 7365.56 499 500 118.1
C 10 22 10912 88.19 499 500 118.1
C 4 238 7420 58.61 499 500 118.1
D 8 195 174659 1214.36 533 519 143.4
D 1 52 162090 1126.71 533 519 143.4
D 7 71 63089 436.33 533 519 143.4

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