ASTROSAT CZTI

Data Quality Report

Orbit 07313

Creation date: 2024-06-27T15:18:22.436449
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_137T02_9000001002_07313cztM0_level2.evt modeM0/AS1G06_137T02_9000001002_07313cztM0_level2_quad_clean.evt
Size (bytes)284,843,52044,254,080
Size271.6 MB 42.2 MB
Events in quadrant A2,044,324258,503
Events in quadrant B1,981,833268,036
Events in quadrant C1,822,950267,573
Events in quadrant D2,492,157251,177

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010010959
B09749946
C09471904
D0110731101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09511
B0928
C09715
D0919

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071
B071
C071
D071

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4184872.079350%
B4172441.054650%
C4182370.884744%
D4171521.246703%

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 4279 4260 15 15 0.35% 0.35%
B 4295 4255 1 1 0.02% 0.02%
C 4278 4250 9 9 0.21% 0.21%
D 4283 4258 14 14 0.33% 0.33%

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 8 15 184530 1898.66 466 455 96.9
A 14 111 55177 564.44 466 455 96.9
A 13 248 4683 43.61 466 455 96.9
B 0 214 81332 871.24 470 458 92.8
B 11 51 43133 459.73 470 458 92.8
B 4 81 28020 296.92 470 458 92.8
C 9 68 46751 432.1 454 454 107.1
C 13 61 3732 30.59 454 454 107.1
C 12 4 1806 12.62 454 454 107.1
D 1 20 374197 3366.82 452 438 111.0
D 2 216 358163 3222.38 452 438 111.0
D 12 233 31713 281.72 452 438 111.0

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