ASTROSAT CZTI

Data Quality Report

Orbit 32438

Creation date: 2024-06-27T20:40:11.725664
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/AS1C06_002T06_9000004708_32438cztM0_level2.evt modeM0/AS1C06_002T06_9000004708_32438cztM0_level2_quad_clean.evt
Size (bytes)365,987,52075,818,880
Size349.0 MB 72.3 MB
Events in quadrant A1,805,421535,062
Events in quadrant B3,790,107520,903
Events in quadrant C1,978,444521,581
Events in quadrant D3,281,448479,992

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074792
B0135591
C080331
D0121231

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3358501.488982%
B335834510.273973%
C33581043.097082%
D335838311.405599%

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 4683 3359 0 0 0.00% 0.00%
B 4683 3359 152 152 3.25% 4.53%
C 4683 3359 6 6 0.13% 0.18%
D 4683 3359 260 260 5.55% 7.74%

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 12 16 6069 60.78 465 457 92.3
A 13 254 5898 58.93 465 457 92.3
A 13 6 4527 44.08 465 457 92.3
B 6 159 957670 11579.08 450 439 82.7
B 4 80 865126 10459.63 450 439 82.7
B 0 190 106179 1279.08 450 439 82.7
C 14 238 80405 773.2 449 453 103.4
C 14 67 69153 664.38 449 453 103.4
C 0 10 41379 395.79 449 453 103.4
D 8 195 573492 5727.11 432 423 100.1
D 12 233 364328 3636.78 432 423 100.1
D 12 218 358447 3578.01 432 423 100.1

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