ASTROSAT CZTI

Data Quality Report

Orbit 43057

Creation date: 2024-06-27T22:47:27.043163
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/AS1A09_006T08_9000005840_43057cztM0_level2.fits modeM0/AS1A09_006T08_9000005840_43057cztM0_level2_quad_clean.evt
Size (bytes)428,636,16079,905,600
Size408.8 MB 76.2 MB
Events in quadrant A3,069,797563,798
Events in quadrant B2,845,877561,453
Events in quadrant C2,329,370547,489
Events in quadrant D7,235,425398,555

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122662
B0118482
C0100622
D0249472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4966771.550544%
B49661543.101087%
C496620.040274%
D4966126025.372533%

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 6759 4967 58 58 0.86% 1.17%
B 6759 4967 104 104 1.54% 2.09%
C 6759 4967 0 0 0.00% 0.00%
D 6759 4967 1276 1276 18.88% 25.69%

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 572312 4970.66 546 535 115.0
A 15 237 259868 2254.47 546 535 115.0
A 12 189 87516 756.16 546 535 115.0
B 5 255 383624 3588.0 536 521 106.8
B 4 171 195361 1824.8 536 521 106.8
B 0 229 105118 979.62 536 521 106.8
C 15 214 218897 1712.85 533 536 127.5
C 3 233 11333 84.69 533 536 127.5
C 7 220 10021 74.4 533 536 127.5
D 2 16 2949439 24490.13 484 469 120.4
D 1 52 1665125 13824.36 484 469 120.4
D 13 249 276115 2289.14 484 469 120.4

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