ASTROSAT CZTI

Data Quality Report

Orbit 16267

Creation date: 2024-06-27T17:20:10.063582
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/AS1T02_112T01_9000002390_16267cztM0_level2.evt modeM0/AS1T02_112T01_9000002390_16267cztM0_level2_quad_clean.evt
Size (bytes)349,833,60054,768,960
Size333.6 MB 52.2 MB
Events in quadrant A2,421,048338,212
Events in quadrant B3,186,435331,750
Events in quadrant C2,307,645339,109
Events in quadrant D2,370,995330,478

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098981
B0122711
C094941
D098221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4531440.971088%
B45312395.274774%
C4531360.794527%
D4531320.706246%

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 4532 4532 16 16 0.35% 0.35%
B 4532 4532 142 142 3.13% 3.13%
C 4532 4532 0 0 0.00% 0.00%
D 4532 4532 22 22 0.49% 0.49%

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 15 174 156236 1335.09 582 572 116.6
A 9 143 12933 106.02 582 572 116.6
A 14 4 12392 101.38 582 572 116.6
B 3 112 601447 5536.32 574 561 108.5
B 7 220 140641 1290.64 574 561 108.5
B 0 198 38664 351.07 574 561 108.5
C 14 238 88504 674.47 561 566 130.4
C 3 233 19583 145.86 561 566 130.4
C 0 207 10919 79.41 561 566 130.4
D 1 52 158336 1158.3 567 553 136.2
D 13 112 49681 360.65 567 553 136.2
D 2 234 18079 128.66 567 553 136.2

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