ASTROSAT CZTI

Data Quality Report

Orbit 44955

Creation date: 2024-06-27T23:08:22.792004
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_017T02_9000006032_44955cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44955cztM0_level2_quad_clean.evt
Size (bytes)727,338,24094,449,600
Size693.6 MB 90.1 MB
Events in quadrant A5,415,046703,527
Events in quadrant B4,395,384705,913
Events in quadrant C3,169,405714,333
Events in quadrant D13,443,292284,938

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206433
B0174111
C0138371
D0444341

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64582523.902137%
B64594256.579966%
C64591041.610156%
D6459395761.263353%

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 7183 6459 11 11 0.15% 0.17%
B 7184 6459 193 193 2.69% 2.99%
C 7184 6460 8 8 0.11% 0.12%
D 7184 6459 3527 3527 49.10% 54.61%

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 2344756 14867.78 759 743 157.7
A 13 248 68167 427.66 759 743 157.7
A 0 243 24810 152.65 759 743 157.7
B 4 171 547642 3666.96 741 720 149.1
B 5 172 186382 1244.81 741 720 149.1
B 15 36 156840 1046.74 741 720 149.1
C 12 250 120871 672.01 757 763 178.7
C 3 233 30556 166.69 757 763 178.7
C 12 2 29870 162.85 757 763 178.7
D 12 33 9118832 62397.8 560 542 146.1
D 8 48 539452 3687.84 560 542 146.1
D 13 249 470117 3213.37 560 542 146.1

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