ASTROSAT CZTI

Data Quality Report

Orbit 09572

Creation date: 2024-06-27T15:47:54.569862
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/AS1G07_042T01_9000001360_09572cztM0_level2.evt modeM0/AS1G07_042T01_9000001360_09572cztM0_level2_quad_clean.evt
Size (bytes)512,222,400109,071,360
Size488.5 MB 104.0 MB
Events in quadrant A4,265,259703,198
Events in quadrant B3,552,091711,119
Events in quadrant C3,419,747703,138
Events in quadrant D3,778,905676,573

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017856228
B015549176
C015220135
D016427203

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01502
B01502
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73011482.027120%
B7311941.285734%
C7323430.587191%
D73071141.560148%

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 7596 7370 3 3 0.04% 0.04%
B 7596 7375 9 9 0.12% 0.12%
C 7595 7375 4 4 0.05% 0.05%
D 7596 7376 36 36 0.47% 0.49%

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 321488 1790.86 885 868 179.0
A 1 178 168346 935.47 885 868 179.0
A 1 161 158957 883.03 885 868 179.0
B 10 252 34523 198.05 888 866 169.9
B 4 80 30908 176.78 888 866 169.9
B 15 85 21072 118.9 888 866 169.9
C 14 67 20033 94.91 869 876 201.8
C 7 221 11246 51.38 869 876 201.8
C 13 61 6354 27.14 869 876 201.8
D 1 52 178193 826.7 859 836 214.5
D 7 71 151703 703.22 859 836 214.5
D 12 233 74725 344.41 859 836 214.5

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