ASTROSAT CZTI

Data Quality Report

Orbit 45703

Creation date: 2024-06-27T23:15:11.913430
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_028T01_9000006122_45703cztM0_level2.fits modeM0/AS1A13_028T01_9000006122_45703cztM0_level2_quad_clean.evt
Size (bytes)243,478,08061,079,040
Size232.2 MB 58.2 MB
Events in quadrant A3,124,572405,240
Events in quadrant B1,791,212416,999
Events in quadrant C1,690,531397,656
Events in quadrant D2,108,317359,958

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0762
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012245216
B0821393
C0809297
D09028138

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3801380.999737%
B3830210.548303%
C3827130.339692%
D3804511.340694%

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 3887 3867 2 2 0.05% 0.05%
B 3887 3872 12 12 0.31% 0.31%
C 3887 3876 6 6 0.15% 0.15%
D 3887 3869 47 47 1.21% 1.21%

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 1527655 17780.85 404 396 85.9
A 13 248 24629 282.13 404 396 85.9
A 13 254 7007 76.97 404 396 85.9
B 5 172 60522 735.33 411 398 81.8
B 3 112 49311 598.22 411 398 81.8
B 12 18 10394 122.25 411 398 81.8
C 3 233 52424 541.48 402 405 96.1
C 14 254 42407 437.21 402 405 96.1
C 11 16 12409 124.95 402 405 96.1
D 1 52 211812 2112.0 392 379 100.1
D 13 249 98193 977.06 392 379 100.1
D 12 1 78740 782.75 392 379 100.1

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