ASTROSAT CZTI

Data Quality Report

Orbit 07507

Creation date: 2024-06-27T15:20:37.653444
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/AS1A02_134T01_9000001036_07507cztM0_level2.evt modeM0/AS1A02_134T01_9000001036_07507cztM0_level2_quad_clean.evt
Size (bytes)209,839,68037,532,160
Size200.1 MB 35.8 MB
Events in quadrant A1,387,563231,609
Events in quadrant B1,545,926236,027
Events in quadrant C1,396,248227,697
Events in quadrant D1,802,478209,979

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065131
B067370
C065150
D076750

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A325030.092308%
B325030.092308%
C325000.000000%
D32501213.723077%

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 3250 3250 0 0 0.00% 0.00%
B 3250 3250 2 2 0.06% 0.06%
C 3250 3250 0 0 0.00% 0.00%
D 3250 3250 96 96 2.95% 2.95%

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 13 248 4404 54.65 358 349 74.2
A 0 226 3224 38.75 358 349 74.2
A 15 239 3154 37.81 358 349 74.2
B 0 214 87234 1225.76 359 349 70.9
B 0 229 57019 799.49 359 349 70.9
B 0 219 7359 98.9 359 349 70.9
C 8 229 7778 89.26 353 354 83.2
C 1 16 3070 32.66 353 354 83.2
C 13 61 2776 29.12 353 354 83.2
D 2 152 409019 4750.78 347 336 86.0
D 2 136 20681 236.5 347 336 86.0
D 13 29 19269 220.09 347 336 86.0

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