ASTROSAT CZTI

Data Quality Report

Orbit 05284

Creation date: 2024-06-27T14:53:29.438224
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_240T02_9000000670_05284cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05284cztM0_level2_quad_clean.evt
Size (bytes)207,236,16043,683,840
Size197.6 MB 41.7 MB
Events in quadrant A1,149,393291,640
Events in quadrant B1,188,832298,781
Events in quadrant C1,154,164291,171
Events in quadrant D2,604,737254,153

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0542
B0540
C0540
D0540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0532016
B0532619
C0530015
D09673139

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A260520.076775%
B260350.192086%
C260530.115163%
D258129011.235955%

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 2612 2612 0 0 0.00% 0.00%
B 2612 2612 1 1 0.04% 0.04%
C 2612 2612 0 0 0.00% 0.00%
D 2612 2608 292 292 11.18% 11.20%

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 0 50 8877 141.34 295 288 60.8
A 8 4 4770 73.76 295 288 60.8
A 0 226 2869 42.47 295 288 60.8
B 0 170 6854 111.55 303 298 58.8
B 12 111 5389 86.62 303 298 58.8
B 11 111 4098 64.65 303 298 58.8
C 13 61 2365 29.66 295 297 69.7
C 3 202 722 6.1 295 297 69.7
C 1 16 697 5.74 295 297 69.7
D 11 145 1427889 20771.38 274 266 68.7
D 2 16 103346 1499.78 274 266 68.7
D 8 195 19609 281.43 274 266 68.7

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