ASTROSAT CZTI

Data Quality Report

Orbit 19294

Creation date: 2024-06-27T18:01:55.959176
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/AS1T03_099T03_9000002854_19294cztM0_level2.evt modeM0/AS1T03_099T03_9000002854_19294cztM0_level2_quad_clean.evt
Size (bytes)533,488,320103,838,400
Size508.8 MB 99.0 MB
Events in quadrant A3,010,534717,767
Events in quadrant B3,028,718720,308
Events in quadrant C2,864,592670,006
Events in quadrant D6,859,381631,233

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125501
B0126241
C0121731
D0243341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5799831.431281%
B5799821.414037%
C5799741.276082%
D5799141824.452492%

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 7129 5799 3 3 0.04% 0.05%
B 7129 5799 3 3 0.04% 0.05%
C 7129 5800 0 0 0.00% 0.00%
D 7128 5799 1395 1395 19.57% 24.06%

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 4 2 74985 490.57 756 743 151.3
A 5 16 18741 118.93 756 743 151.3
A 13 254 9106 55.26 756 743 151.3
B 3 64 41321 292.03 746 731 139.0
B 0 229 19030 131.66 746 731 139.0
B 0 197 17110 117.84 746 731 139.0
C 14 238 111583 687.08 699 703 161.4
C 5 112 18034 107.39 699 703 161.4
C 3 233 10421 60.22 699 703 161.4
D 7 238 4013419 26144.38 637 618 153.5
D 1 52 309894 2015.01 637 618 153.5
D 13 138 65373 421.89 637 618 153.5

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