ASTROSAT CZTI

Data Quality Report

Orbit 43313

Creation date: 2024-06-27T22:50:30.296173
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/AS1A12_088T25_9000005866_43313cztM0_level2.fits modeM0/AS1A12_088T25_9000005866_43313cztM0_level2_quad_clean.evt
Size (bytes)343,434,24094,962,240
Size327.5 MB 90.6 MB
Events in quadrant A3,589,204640,386
Events in quadrant B2,705,455670,530
Events in quadrant C2,762,766629,299
Events in quadrant D3,233,547556,198

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141383
B0114442
C0112952
D0134082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54181051.937984%
B5418350.645995%
C5418120.221484%
D54181973.636028%

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 7332 5418 81 81 1.10% 1.50%
B 7332 5419 24 24 0.33% 0.44%
C 7332 5419 8 8 0.11% 0.15%
D 7332 5419 182 182 2.48% 3.36%

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 581286 4524.49 625 613 128.3
A 15 237 343725 2673.46 625 613 128.3
A 15 222 200142 1554.69 625 613 128.3
B 5 172 115259 935.63 630 612 122.5
B 5 255 62466 504.79 630 612 122.5
B 0 190 17042 134.09 630 612 122.5
C 15 214 227875 1564.16 616 620 145.3
C 14 254 96418 659.36 616 620 145.3
C 3 233 34729 234.77 616 620 145.3
D 1 52 517238 3465.97 599 580 149.1
D 13 249 185887 1243.12 599 580 149.1
D 12 6 155984 1042.52 599 580 149.1

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