ASTROSAT CZTI

Data Quality Report

Orbit 38366

Creation date: 2024-06-27T21:51:44.929164
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/AS1A10_094T24_9000005374_38366cztM0_level2.fits modeM0/AS1A10_094T24_9000005374_38366cztM0_level2_quad_clean.evt
Size (bytes)463,032,00079,156,800
Size441.6 MB 75.5 MB
Events in quadrant A2,853,062565,388
Events in quadrant B2,725,928578,371
Events in quadrant C2,422,082557,136
Events in quadrant D8,743,787339,425

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117032
B0115522
C0102882
D0295422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5081170.334580%
B5081440.865971%
C508170.137768%
D5081186836.764416%

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 6394 5082 10 10 0.16% 0.20%
B 6394 5082 21 21 0.33% 0.41%
C 6394 5082 1 1 0.02% 0.02%
D 6394 5081 1798 1798 28.12% 35.39%

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 369834 3202.46 565 553 115.3
A 13 248 101739 877.5 565 553 115.3
A 9 143 90623 781.1 565 553 115.3
B 0 183 100268 920.97 564 547 108.3
B 0 155 57291 524.06 564 547 108.3
B 4 171 52386 478.76 564 547 108.3
C 15 214 212796 1639.17 555 559 129.5
C 14 67 12260 90.37 555 559 129.5
C 12 249 12065 88.86 555 559 129.5
D 10 203 5100597 41921.11 496 481 121.7
D 12 227 790658 6494.97 496 481 121.7
D 11 176 371075 3046.14 496 481 121.7

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