ASTROSAT CZTI

Data Quality Report

Orbit 44095

Creation date: 2024-06-27T22:59:19.678088
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/AS1A13_038T01_9000005944_44095cztM0_level2.fits modeM0/AS1A13_038T01_9000005944_44095cztM0_level2_quad_clean.evt
Size (bytes)626,189,76097,718,400
Size597.2 MB 93.2 MB
Events in quadrant A11,415,820307,523
Events in quadrant B3,690,959777,775
Events in quadrant C3,145,631756,052
Events in quadrant D4,422,760665,064

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0384242
B0155042
C0138213
D0176742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6482408062.943536%
B64822123.270595%
C6481550.848634%
D64813385.215245%

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 7606 6482 2534 2534 33.32% 39.09%
B 7607 6483 53 53 0.70% 0.82%
C 7606 6482 3 3 0.04% 0.05%
D 7606 6482 190 190 2.50% 2.93%

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 15 223 8652052 90497.56 461 452 95.6
A 10 83 799967 8363.1 461 452 95.6
A 15 222 108464 1129.83 461 452 95.6
B 4 171 352656 2329.69 770 748 151.1
B 0 200 123231 810.86 770 748 151.1
B 4 173 46806 304.91 770 748 151.1
C 14 96 51617 283.92 767 772 179.1
C 14 254 48557 266.83 767 772 179.1
C 3 233 46612 255.97 767 772 179.1
D 1 52 363226 1917.2 752 730 189.1
D 12 222 248883 1312.45 752 730 189.1
D 12 233 208634 1099.58 752 730 189.1

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