ASTROSAT CZTI

Data Quality Report

Orbit 06080

Creation date: 2024-06-27T15:02:28.959224
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/AS1A02_028T03_9000000788_06080cztM0_level2.evt modeM0/AS1A02_028T03_9000000788_06080cztM0_level2_quad_clean.evt
Size (bytes)412,234,56086,512,320
Size393.1 MB 82.5 MB
Events in quadrant A2,933,710549,346
Events in quadrant B3,455,689551,971
Events in quadrant C2,870,009551,668
Events in quadrant D2,796,289526,915

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130743
B0145562
C0129522
D0129712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6304190.301396%
B6304831.316624%
C6304150.237944%
D6304100.158629%

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 7545 6306 0 0 0.00% 0.00%
B 7545 6306 48 48 0.64% 0.76%
C 7545 6306 0 0 0.00% 0.00%
D 7545 6306 2 2 0.03% 0.03%

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 8 15 33840 221.04 739 721 149.8
A 14 111 27810 180.8 739 721 149.8
A 3 1 21595 139.32 739 721 149.8
B 3 64 257522 1823.68 747 729 140.8
B 10 246 146488 1035.15 747 729 140.8
B 0 214 54189 379.66 747 729 140.8
C 9 54 11866 65.74 731 734 169.3
C 13 61 5770 29.74 731 734 169.3
C 1 16 3660 17.28 731 734 169.3
D 8 195 19334 105.81 724 701 176.1
D 2 33 12215 65.38 724 701 176.1
D 12 221 9408 49.44 724 701 176.1

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