ASTROSAT CZTI

Data Quality Report

Orbit 42393

Creation date: 2024-06-27T22:39:46.974224
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/AS1C06_010T01_9000005800_42393cztM0_level2.fits modeM0/AS1C06_010T01_9000005800_42393cztM0_level2_quad_clean.evt
Size (bytes)335,571,84095,901,120
Size320.0 MB 91.5 MB
Events in quadrant A3,164,687635,882
Events in quadrant B2,827,068638,669
Events in quadrant C2,943,457629,567
Events in quadrant D3,026,701587,060

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132742
B0127732
C0126462
D0133182

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5903210.355751%
B5904631.067073%
C5904370.626694%
D5904470.796070%

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 8589 5905 9 9 0.10% 0.15%
B 8590 5906 33 33 0.38% 0.56%
C 8590 5906 27 27 0.31% 0.46%
D 8590 5906 32 32 0.37% 0.54%

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 611340 4779.82 626 614 127.8
A 14 223 38925 299.84 626 614 127.8
A 3 1 37318 287.26 626 614 127.8
B 5 172 155669 1286.22 620 602 120.6
B 0 245 64509 530.08 620 602 120.6
B 15 35 47719 390.82 620 602 120.6
C 15 214 243942 1697.54 613 619 143.3
C 4 254 216725 1507.66 613 619 143.3
C 14 254 49909 343.87 613 619 143.3
D 1 52 202385 1351.05 615 596 149.4
D 2 16 90509 602.0 615 596 149.4
D 12 6 74132 492.35 615 596 149.4

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