ASTROSAT CZTI

Data Quality Report

Orbit 42634

Creation date: 2024-06-27T22:42:28.151512
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/AS1A05_174T01_9000005820_42634cztM0_level2.fits modeM0/AS1A05_174T01_9000005820_42634cztM0_level2_quad_clean.evt
Size (bytes)321,998,40087,984,000
Size307.1 MB 83.9 MB
Events in quadrant A2,768,841597,311
Events in quadrant B2,351,328614,214
Events in quadrant C2,557,004592,131
Events in quadrant D3,861,651518,329

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109642
B099982
C0101702
D0147032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A488680.163733%
B488660.122800%
C4886160.327466%
D48863146.426525%

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 7009 4887 2 2 0.03% 0.04%
B 7009 4887 0 0 0.00% 0.00%
C 7009 4887 10 10 0.14% 0.20%
D 7009 4887 275 275 3.92% 5.63%

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 10 83 522181 4392.96 579 569 118.7
A 2 79 6843 52.84 579 569 118.7
A 13 254 6467 49.67 579 569 118.7
B 0 245 60463 545.18 572 557 109.9
B 0 168 25575 227.68 572 557 109.9
B 12 111 13758 120.14 572 557 109.9
C 15 214 207014 1556.19 571 576 132.7
C 14 254 67003 500.75 571 576 132.7
C 3 233 49363 367.77 571 576 132.7
D 2 249 644203 4722.08 557 541 136.3
D 12 6 312102 2285.7 557 541 136.3
D 1 52 263032 1925.71 557 541 136.3

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