ASTROSAT CZTI

Data Quality Report

Orbit 13353

Creation date: 2024-06-27T16:39:33.920177
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_082T01_9000001986_13353cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13353cztM0_level2_quad_clean.evt
Size (bytes)219,231,36030,862,080
Size209.1 MB 29.4 MB
Events in quadrant A1,422,231176,357
Events in quadrant B1,444,279182,355
Events in quadrant C1,460,672175,936
Events in quadrant D2,088,979168,018

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065231
B065320
C065600
D084640

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A325220.061501%
B325210.030750%
C325210.030750%
D32521173.597786%

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 3253 3253 0 0 0.00% 0.00%
B 3253 3253 0 0 0.00% 0.00%
C 3253 3253 0 0 0.00% 0.00%
D 3253 3253 97 97 2.98% 2.98%

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 9 143 5578 68.84 365 358 75.8
A 1 162 3946 47.32 365 358 75.8
A 0 226 3142 36.72 365 358 75.8
B 0 230 9549 130.01 364 355 70.7
B 12 111 8150 110.22 364 355 70.7
B 11 111 6829 91.54 364 355 70.7
C 3 233 32224 373.89 361 362 85.2
C 14 220 17741 203.94 361 362 85.2
C 13 61 2585 26.09 361 362 85.2
D 5 222 598858 6834.09 355 344 87.6
D 8 195 68811 781.79 355 344 87.6
D 13 249 59211 672.17 355 344 87.6

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