ASTROSAT CZTI

Data Quality Report

Orbit 28395

Creation date: 2024-06-27T19:51:18.039934
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/AS1A10_045T05_9000004086_28395cztM0_level2.evt modeM0/AS1A10_045T05_9000004086_28395cztM0_level2_quad_clean.evt
Size (bytes)296,648,64027,941,760
Size282.9 MB 26.6 MB
Events in quadrant A1,583,945155,065
Events in quadrant B1,603,448158,030
Events in quadrant C1,610,397152,302
Events in quadrant D3,956,503141,306

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068100
B068250
C068150
D0141080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A336840.118765%
B336810.029691%
C3368240.712589%
D336852715.647268%

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 3368 3368 3 3 0.09% 0.09%
B 3368 3368 0 0 0.00% 0.00%
C 3368 3368 0 0 0.00% 0.00%
D 3368 3368 457 457 13.57% 13.57%

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 12 96 10511 121.85 405 396 83.0
A 6 16 6611 74.87 405 396 83.0
A 13 254 5655 63.35 405 396 83.0
B 10 245 29114 365.79 400 389 78.5
B 12 111 9468 115.61 400 389 78.5
B 11 111 8759 106.59 400 389 78.5
C 14 238 67733 725.31 391 394 92.8
C 7 220 9965 103.09 391 394 92.8
C 14 254 6823 69.25 391 394 92.8
D 1 52 1979964 21617.17 374 362 91.6
D 8 195 499608 5451.74 374 362 91.6
D 2 250 32789 354.1 374 362 91.6

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