ASTROSAT CZTI

Data Quality Report

Orbit 33860

Creation date: 2024-06-27T20:53:34.682631
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/AS1T04_089T01_9000004832_33860cztM0_level2.evt modeM0/AS1T04_089T01_9000004832_33860cztM0_level2_quad_clean.evt
Size (bytes)431,562,24069,632,640
Size411.6 MB 66.4 MB
Events in quadrant A2,534,500447,398
Events in quadrant B3,285,496429,948
Events in quadrant C2,797,017448,273
Events in quadrant D4,107,054425,630

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104863
B0129852
C0112142
D0157162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A509480.157048%
B50942615.123675%
C5094781.531213%
D5094841.648999%

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 7096 5095 0 0 0.00% 0.00%
B 7096 5095 179 179 2.52% 3.51%
C 7096 5095 51 51 0.72% 1.00%
D 7096 5095 65 65 0.92% 1.28%

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 15 169 146164 1178.41 613 601 123.5
A 10 83 11509 88.31 613 601 123.5
A 13 6 9522 72.22 613 601 123.5
B 5 172 781276 6916.37 596 582 112.9
B 0 229 37481 326.9 596 582 112.9
B 15 222 24850 215.0 596 582 112.9
C 15 214 219587 1592.7 597 603 137.5
C 0 10 190993 1384.73 597 603 137.5
C 3 233 27050 192.35 597 603 137.5
D 8 195 1041697 6449.32 593 582 161.4
D 12 235 154287 952.15 593 582 161.4
D 2 250 103314 636.39 593 582 161.4

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