ASTROSAT CZTI

Data Quality Report

Orbit 07341

Creation date: 2024-06-27T15:18:45.274850
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/AS1G06_157T02_9000001008_07341cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07341cztM0_level2_quad_clean.evt
Size (bytes)829,895,040159,704,640
Size791.4 MB 152.3 MB
Events in quadrant A5,760,687992,872
Events in quadrant B6,138,9121,020,389
Events in quadrant C5,772,3001,002,708
Events in quadrant D6,610,072952,125

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261055
B0269804
C0261394
D0285664

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02560
B02560
C02560
D02560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A125661351.074328%
B125661671.328983%
C12566710.565017%
D125661621.289193%

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 14291 12569 3 3 0.02% 0.02%
B 14291 12568 20 20 0.14% 0.16%
C 14291 12569 1 1 0.01% 0.01%
D 14291 12568 96 96 0.67% 0.76%

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 14 111 50919 164.22 1472 1442 301.3
A 15 234 26519 83.23 1472 1442 301.3
A 13 248 15953 48.16 1472 1442 301.3
B 4 81 109907 380.47 1491 1454 285.0
B 0 214 89680 309.51 1491 1454 285.0
B 11 51 62947 215.73 1491 1454 285.0
C 9 68 146945 435.86 1435 1444 333.8
C 13 61 11232 29.32 1435 1444 333.8
C 14 234 10135 26.03 1435 1444 333.8
D 2 216 420240 1208.49 1420 1375 346.6
D 5 233 325530 935.23 1420 1375 346.6
D 8 195 176365 504.87 1420 1375 346.6

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