ASTROSAT CZTI

Data Quality Report

Orbit 02537

Creation date: 2024-06-27T14:19:20.648691
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/AS1T01_057T01_9000000380_02537cztM0_level2.evt modeM0/AS1T01_057T01_9000000380_02537cztM0_level2_quad_clean.evt
Size (bytes)223,750,08033,183,360
Size213.4 MB 31.6 MB
Events in quadrant A1,369,378208,524
Events in quadrant B1,364,562213,172
Events in quadrant C1,943,269206,819
Events in quadrant D1,928,332197,230

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056692
B056981
C074621
D074141

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A24851495.995976%
B24851485.955734%
C24852469.899396%
D24851696.800805%

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 2500 2486 0 0 0.00% 0.00%
B 2500 2486 0 0 0.00% 0.00%
C 2500 2486 125 125 5.00% 5.03%
D 2500 2486 100 100 4.00% 4.02%

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 15 31541 415.44 347 337 75.1
A 12 194 3899 47.42 347 337 75.1
A 0 226 3732 45.2 347 337 75.1
B 5 172 14924 201.3 346 336 72.5
B 12 111 5504 71.31 346 336 72.5
B 15 85 5167 66.66 346 336 72.5
C 9 144 602638 7585.05 321 322 79.4
C 12 4 57237 716.74 321 322 79.4
C 8 112 9115 110.73 321 322 79.4
D 11 131 244617 3026.19 326 318 80.7
D 10 102 212966 2634.13 326 318 80.7
D 2 184 62221 766.81 326 318 80.7

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
Veto Counter