ASTROSAT CZTI

Data Quality Report

Orbit 46414

Creation date: 2024-06-27T23:22:54.352526
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_070T04_9000006204_46414cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46414cztM0_level2_quad_clean.evt
Size (bytes)286,246,08065,347,200
Size273.0 MB 62.3 MB
Events in quadrant A3,572,274448,010
Events in quadrant B1,856,870465,096
Events in quadrant C2,879,998367,143
Events in quadrant D1,958,549402,724

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133591
B086010
C0117170
D090190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4198260.619343%
B4199190.452489%
C420070216.714286%
D4200180.428571%

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 4199 4199 13 13 0.31% 0.31%
B 4200 4200 12 12 0.29% 0.29%
C 4200 4200 276 276 6.57% 6.57%
D 4200 4200 11 11 0.26% 0.26%

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 1762756 18624.67 448 438 94.6
A 13 248 43937 459.71 448 438 94.6
A 0 243 14972 153.6 448 438 94.6
B 0 246 30534 335.55 449 436 89.7
B 4 170 14229 153.77 449 436 89.7
B 5 171 13607 146.84 449 436 89.7
C 14 254 1152334 13084.3 373 375 88.0
C 1 3 249262 2826.93 373 375 88.0
C 9 54 7355 79.28 373 375 88.0
D 5 32 73796 657.29 439 424 111.6
D 14 34 41012 363.6 439 424 111.6
D 13 249 36079 319.41 439 424 111.6

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