ASTROSAT CZTI

Data Quality Report

Orbit 22348

Creation date: 2024-06-27T18:39:45.426233
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/AS1T03_147T01_9000003306_22348cztM0_level2.evt modeM0/AS1T03_147T01_9000003306_22348cztM0_level2_quad_clean.evt
Size (bytes)430,790,40077,325,120
Size410.8 MB 73.7 MB
Events in quadrant A3,081,120480,359
Events in quadrant B3,206,286506,694
Events in quadrant C3,232,741472,997
Events in quadrant D3,110,709454,340

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129502
B0132702
C0132852
D0131882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6118160.261523%
B6118360.588428%
C6118530.866296%
D6118100.163452%

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 7508 6119 0 0 0.00% 0.00%
B 7508 6119 0 0 0.00% 0.00%
C 7508 6119 0 0 0.00% 0.00%
D 7508 6119 4 4 0.05% 0.07%

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 13 254 7845 44.33 799 784 159.3
A 0 226 6786 37.68 799 784 159.3
A 3 137 6471 35.7 799 784 159.3
B 12 111 17539 111.67 817 797 149.9
B 11 111 15445 97.7 817 797 149.9
B 14 111 14309 90.12 817 797 149.9
C 14 238 127258 683.18 793 801 185.1
C 0 10 13581 69.04 793 801 185.1
C 13 61 5536 25.58 793 801 185.1
D 12 227 107978 565.88 784 760 189.5
D 1 52 25644 131.33 784 760 189.5
D 2 234 21931 111.74 784 760 189.5

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