ASTROSAT CZTI

Data Quality Report

Orbit 32832

Creation date: 2024-06-27T20:42:30.740267
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_002T09_9000004734_32832cztM0_level2.evt modeM0/AS1C06_002T09_9000004734_32832cztM0_level2_quad_clean.evt
Size (bytes)466,162,56097,695,360
Size444.6 MB 93.2 MB
Events in quadrant A2,596,169676,043
Events in quadrant B2,981,011672,495
Events in quadrant C2,677,624653,342
Events in quadrant D5,521,318603,396

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109073
B0121302
C0113152
D0200212

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5045410.812686%
B5045991.962339%
C5045661.308226%
D50452214.380575%

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 7077 5046 13 13 0.18% 0.26%
B 7077 5046 66 66 0.93% 1.31%
C 7077 5046 46 46 0.65% 0.91%
D 7077 5046 190 190 2.68% 3.77%

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 14 238 198185 1681.15 591 579 117.5
A 12 16 42881 359.89 591 579 117.5
A 14 239 25504 212.05 591 579 117.5
B 0 219 249447 2266.42 584 571 109.8
B 5 172 187364 1701.05 584 571 109.8
B 8 128 121480 1101.07 584 571 109.8
C 0 10 149776 1169.94 559 563 127.5
C 1 241 125084 976.34 559 563 127.5
C 3 233 93103 725.58 559 563 127.5
D 8 195 2427926 18195.08 555 539 133.4
D 2 250 455368 3409.28 555 539 133.4
D 1 52 96985 722.94 555 539 133.4

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