ASTROSAT CZTI

Data Quality Report

Orbit 13724

Creation date: 2024-06-27T16:44:58.426987
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/AS1G08_036T01_9000002034_13724cztM0_level2.evt modeM0/AS1G08_036T01_9000002034_13724cztM0_level2_quad_clean.evt
Size (bytes)243,172,80033,428,160
Size231.9 MB 31.9 MB
Events in quadrant A1,641,944193,434
Events in quadrant B1,960,620200,841
Events in quadrant C1,638,297186,116
Events in quadrant D1,879,485178,566

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071590
B080840
C071410
D077170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A356410.028058%
B3564130.364759%
C356410.028058%
D3564130.364759%

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 3565 3565 0 0 0.00% 0.00%
B 3565 3565 4 4 0.11% 0.11%
C 3565 3565 0 0 0.00% 0.00%
D 3565 3565 10 10 0.28% 0.28%

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 1 162 10186 112.62 422 413 86.8
A 1 178 4092 42.4 422 413 86.8
A 0 226 3862 39.75 422 413 86.8
B 10 244 227582 2826.04 416 407 80.4
B 4 173 37933 466.82 416 407 80.4
B 0 219 33427 410.77 416 407 80.4
C 3 233 54731 575.86 405 407 94.3
C 13 61 3091 28.45 405 407 94.3
C 4 254 1759 14.33 405 407 94.3
D 8 195 159548 1440.53 406 399 110.5
D 5 222 108917 982.25 406 399 110.5
D 10 157 30709 274.35 406 399 110.5

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