ASTROSAT CZTI

Data Quality Report

Orbit 03472

Creation date: 2024-06-27T14:29:50.572141
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/AS1G05_245T01_9000000460_03472cztM0_level2.evt modeM0/AS1G05_245T01_9000000460_03472cztM0_level2_quad_clean.evt
Size (bytes)242,956,80031,224,960
Size231.7 MB 29.8 MB
Events in quadrant A1,629,198183,348
Events in quadrant B1,896,425182,581
Events in quadrant C2,116,351181,075
Events in quadrant D1,501,898175,493

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A067061
B077121
C082421
D065121

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3128200.639386%
B3128290.927110%
C31282006.393862%
D3128100.319693%

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 3128 3128 6 6 0.19% 0.19%
B 3128 3128 13 13 0.42% 0.42%
C 3128 3128 177 177 5.66% 5.66%
D 3128 3128 2 2 0.06% 0.06%

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 41649 513.71 395 387 80.3
A 8 15 29640 364.2 395 387 80.3
A 0 118 20528 250.75 395 387 80.3
B 15 204 217249 2829.25 399 390 76.6
B 15 85 46120 596.62 399 390 76.6
B 2 249 45463 588.04 399 390 76.6
C 1 192 635966 7252.79 376 379 87.6
C 1 16 3985 41.15 376 379 87.6
C 12 4 3380 34.24 376 379 87.6
D 13 223 17951 187.53 384 375 93.7
D 13 46 12489 129.25 384 375 93.7
D 8 195 9786 100.41 384 375 93.7

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