ASTROSAT CZTI

Data Quality Report

Orbit 31342

Creation date: 2024-06-27T20:27:00.924190
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/AS1A10_053T31_9000004540_31342cztM0_level2.evt modeM0/AS1A10_053T31_9000004540_31342cztM0_level2_quad_clean.evt
Size (bytes)235,039,68017,706,240
Size224.2 MB 16.9 MB
Events in quadrant A1,400,30484,364
Events in quadrant B2,275,25284,606
Events in quadrant C1,573,15979,304
Events in quadrant D1,671,20480,465

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058830
B088930
C063800
D068490

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A289340.138265%
B2894331.140290%
C2894511.762267%
D2894190.656531%

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 2893 2893 0 0 0.00% 0.00%
B 2894 2894 7 7 0.24% 0.24%
C 2894 2894 10 10 0.35% 0.35%
D 2894 2894 12 12 0.41% 0.41%

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 13 254 5680 71.16 361 354 74.8
A 5 16 5371 67.03 361 354 74.8
A 3 137 3613 43.54 361 354 74.8
B 6 159 776556 11306.65 353 344 68.7
B 0 190 73400 1064.16 353 344 68.7
B 0 155 8997 126.04 353 344 68.7
C 3 233 119627 1472.54 337 339 81.0
C 14 238 63289 777.08 337 339 81.0
C 14 128 27308 332.92 337 339 81.0
D 8 195 291034 3417.28 347 337 85.1
D 7 69 21528 249.11 347 337 85.1
D 13 249 14315 164.32 347 337 85.1

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