ASTROSAT CZTI

Data Quality Report

Orbit 19413

Creation date: 2024-06-27T18:02:43.593611
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/AS1T03_028T01_9000002880_19413cztM0_level2.evt modeM0/AS1T03_028T01_9000002880_19413cztM0_level2_quad_clean.evt
Size (bytes)243,097,92027,668,160
Size231.8 MB 26.4 MB
Events in quadrant A1,442,482162,618
Events in quadrant B1,567,004160,251
Events in quadrant C1,469,186151,061
Events in quadrant D2,676,847148,041

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061100
B064120
C061800
D0100380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A302160.198610%
B3021170.562728%
C3022140.463269%
D30221043.441430%

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 3021 3021 0 0 0.00% 0.00%
B 3021 3021 12 12 0.40% 0.40%
C 3022 3022 0 0 0.00% 0.00%
D 3022 3022 124 124 4.10% 4.10%

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 13 254 5367 64.99 373 366 76.9
A 0 226 3263 37.65 373 366 76.9
A 11 29 3082 35.3 373 366 76.9
B 7 220 46008 635.17 370 362 71.9
B 4 174 34794 479.12 370 362 71.9
B 0 197 16836 229.24 370 362 71.9
C 14 238 56745 681.53 351 353 82.7
C 3 233 32366 386.9 351 353 82.7
C 7 220 5185 58.4 351 353 82.7
D 7 238 1299839 14734.43 356 346 88.2
D 2 234 13907 153.76 356 346 88.2
D 8 195 6419 68.86 356 346 88.2

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