ASTROSAT CZTI

Data Quality Report

Orbit 44342

Creation date: 2024-06-27T23:02:23.116123
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_004T09_9000005992_44342cztM0_level2.fits modeM0/AS1A13_004T09_9000005992_44342cztM0_level2_quad_clean.evt
Size (bytes)447,943,680112,812,480
Size427.2 MB 107.6 MB
Events in quadrant A5,167,576749,092
Events in quadrant B3,432,654792,836
Events in quadrant C3,189,343753,336
Events in quadrant D4,288,914669,495

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209102
B0142672
C0137962
D0169262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64683415.272109%
B64681181.824366%
C6468651.004947%
D64683695.705009%

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 7613 6468 103 103 1.35% 1.59%
B 7613 6468 12 12 0.16% 0.19%
C 7613 6468 20 20 0.26% 0.31%
D 7613 6468 313 313 4.11% 4.84%

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 1639834 10246.54 774 758 160.0
A 13 248 475585 2968.34 774 758 160.0
A 15 223 20617 124.15 774 758 160.0
B 0 199 69872 453.26 776 753 152.5
B 5 255 66298 429.82 776 753 152.5
B 0 155 58017 375.52 776 753 152.5
C 3 233 120884 677.65 755 758 177.3
C 14 254 98822 553.2 755 758 177.3
C 1 3 18134 98.02 755 758 177.3
D 13 249 852029 4575.39 744 721 186.1
D 2 153 225668 1208.99 744 721 186.1
D 12 1 99339 530.03 744 721 186.1

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