ASTROSAT CZTI

Data Quality Report

Orbit 43958

Creation date: 2024-06-27T22:57:40.776537
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_025T01_9000005920_43958cztM0_level2.fits modeM0/AS1A13_025T01_9000005920_43958cztM0_level2_quad_clean.evt
Size (bytes)249,845,76047,456,640
Size238.3 MB 45.3 MB
Events in quadrant A2,937,320313,665
Events in quadrant B1,533,126327,354
Events in quadrant C1,694,041311,032
Events in quadrant D2,842,703265,278

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109750
B066420
C072620
D0105660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A30851314.246353%
B3085160.518639%
C3086642.073882%
D308634211.082307%

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 3086 3086 118 118 3.82% 3.82%
B 3086 3086 9 9 0.29% 0.29%
C 3087 3087 69 69 2.24% 2.24%
D 3087 3087 353 353 11.44% 11.44%

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 14 238 548280 8023.28 319 312 68.3
A 15 222 530033 7756.11 319 312 68.3
A 10 83 525779 7693.82 319 312 68.3
B 5 172 93225 1452.5 318 309 64.0
B 4 173 44274 687.28 318 309 64.0
B 0 200 28171 435.55 318 309 64.0
C 15 158 209745 2825.63 311 312 74.1
C 1 241 88681 1192.26 311 312 74.1
C 15 157 62502 839.06 311 312 74.1
D 7 204 664703 8546.55 305 296 77.7
D 12 233 197713 2539.46 305 296 77.7
D 5 235 135645 1741.05 305 296 77.7

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter