ASTROSAT CZTI

Data Quality Report

Orbit 38963

Creation date: 2024-06-27T21:58:42.147997
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/AS1T05_064T01_9000005416_38963cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38963cztM0_level2_quad_clean.evt
Size (bytes)369,817,92093,208,320
Size352.7 MB 88.9 MB
Events in quadrant A2,979,918632,490
Events in quadrant B2,738,805648,071
Events in quadrant C2,695,242619,784
Events in quadrant D4,830,165521,713

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123046
B0119755
C0115968
D0182092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5720140.244755%
B5720380.664336%
C571850.087443%
D572259010.311080%

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 7246 5722 7 7 0.10% 0.12%
B 7246 5722 26 26 0.36% 0.45%
C 7246 5721 2 2 0.03% 0.03%
D 7246 5723 597 597 8.24% 10.43%

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 445667 3437.78 637 623 129.5
A 7 3 43108 328.18 637 623 129.5
A 13 6 16593 123.36 637 623 129.5
B 5 172 133637 1075.76 632 612 123.7
B 0 230 53062 424.16 632 612 123.7
B 0 186 35590 282.86 632 612 123.7
C 15 214 237148 1641.72 618 621 144.1
C 2 16 25562 173.11 618 621 144.1
C 14 254 6581 41.37 618 621 144.1
D 2 249 1529111 10674.29 587 570 143.2
D 12 235 426001 2970.92 587 570 143.2
D 2 250 211462 1472.73 587 570 143.2

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