ASTROSAT CZTI

Data Quality Report

Orbit 23031

Creation date: 2024-06-27T18:49:00.992902
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/AS1C05_004T01_9000003404_23031cztM0_level2.evt modeM0/AS1C05_004T01_9000003404_23031cztM0_level2_quad_clean.evt
Size (bytes)296,645,76044,893,440
Size282.9 MB 42.8 MB
Events in quadrant A1,580,749284,331
Events in quadrant B1,686,245294,226
Events in quadrant C1,641,018279,932
Events in quadrant D3,844,561260,054

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083261406
B086571459
C085101457
D0161132293

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08216
B08317
C08115
D08418

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184
B0163
C0172
D0174

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A339650.147232%
B3403240.705260%
C3405340.998532%
D33881253.689492%

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 7785 3423 0 0 0.00% 0.00%
B 7784 3432 7 7 0.09% 0.20%
C 7786 3439 4 4 0.05% 0.12%
D 7786 3413 79 79 1.01% 2.31%

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 5308 59.64 409 401 82.3
A 0 226 3601 38.9 409 401 82.3
A 3 137 3356 35.92 409 401 82.3
B 0 189 46277 585.43 410 400 78.4
B 3 64 24234 304.14 410 400 78.4
B 12 111 9302 113.6 410 400 78.4
C 14 238 65804 710.45 394 397 92.1
C 0 10 23675 252.85 394 397 92.1
C 0 207 13082 137.78 394 397 92.1
D 1 52 2020687 21225.23 387 375 95.2
D 5 222 178546 1871.85 387 375 95.2
D 2 152 123638 1294.99 387 375 95.2

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