ASTROSAT CZTI

Data Quality Report

Orbit 07348

Creation date: 2024-06-27T15:18:48.841602
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/AS1G06_157T02_9000001008_07348cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07348cztM0_level2_quad_clean.evt
Size (bytes)458,521,92068,503,680
Size437.3 MB 65.3 MB
Events in quadrant A3,146,692406,828
Events in quadrant B3,357,706408,027
Events in quadrant C3,189,377408,484
Events in quadrant D3,745,653392,011

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137053
B0144052
C0137962
D0157772

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6577600.912270%
B6577781.185951%
C6577470.714612%
D65771432.174244%

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 7607 6577 0 0 0.00% 0.00%
B 7607 6577 13 13 0.17% 0.20%
C 7607 6577 0 0 0.00% 0.00%
D 7607 6577 51 51 0.67% 0.78%

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 15 234 54907 333.16 797 778 162.5
A 14 111 11613 66.69 797 778 162.5
A 15 239 9140 51.47 797 778 162.5
B 11 51 103428 667.42 800 780 153.8
B 0 214 93876 605.31 800 780 153.8
B 4 81 33408 212.15 800 780 153.8
C 9 68 134465 741.62 777 781 180.3
C 1 16 9250 46.98 777 781 180.3
C 1 3 8678 43.81 777 781 180.3
D 2 216 418523 2187.41 775 752 191.0
D 14 34 145725 759.07 775 752 191.0
D 8 195 115390 600.23 775 752 191.0

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