ASTROSAT CZTI

Data Quality Report

Orbit 06536

Creation date: 2024-06-27T15:08:38.855626
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_134T06_9000000878_06536cztM0_level2.evt modeM0/AS1G06_134T06_9000000878_06536cztM0_level2_quad_clean.evt
Size (bytes)191,404,80051,212,160
Size182.5 MB 48.8 MB
Events in quadrant A1,564,544335,159
Events in quadrant B1,334,624338,126
Events in quadrant C1,209,944337,401
Events in quadrant D1,482,867327,746

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06926265
B06291209
C06181227
D06733243

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0626
B0622
C0624
D0622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2973170.571813%
B298620.066979%
C297310.033636%
D2980220.738255%

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 3086 3073 9 9 0.29% 0.29%
B 3086 3083 0 0 0.00% 0.00%
C 3086 3080 0 0 0.00% 0.00%
D 3086 3080 10 10 0.32% 0.32%

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 15 236 280648 4153.43 320 313 67.5
A 8 15 34441 505.63 320 313 67.5
A 8 4 6940 98.18 320 313 67.5
B 0 214 26651 422.16 318 312 62.4
B 4 170 23423 370.42 318 312 62.4
B 0 219 14009 219.53 318 312 62.4
C 8 128 3735 47.12 307 309 72.7
C 12 4 3075 38.04 307 309 72.7
C 13 61 2374 28.4 307 309 72.7
D 2 152 101712 1312.08 312 303 77.3
D 12 233 69112 890.28 312 303 77.3
D 14 173 58807 756.95 312 303 77.3

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