ASTROSAT CZTI

Data Quality Report

Orbit 19266

Creation date: 2024-06-27T18:00:50.302630
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/AS1A05_088T02_9000002850_19266cztM0_level2.evt modeM0/AS1A05_088T02_9000002850_19266cztM0_level2_quad_clean.evt
Size (bytes)455,322,240106,557,120
Size434.2 MB 101.6 MB
Events in quadrant A3,207,091693,006
Events in quadrant B3,284,721720,033
Events in quadrant C3,652,369706,481
Events in quadrant D3,231,705682,473

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133711
B0136511
C0146781
D0135012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6095580.951600%
B6096831.361549%
C60962584.232283%
D6095651.066448%

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 7455 6096 1 1 0.01% 0.02%
B 7456 6097 0 0 0.00% 0.00%
C 7456 6096 59 59 0.79% 0.97%
D 7455 6096 7 7 0.09% 0.11%

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 4 2 10208 56.86 827 812 165.3
A 13 254 8387 45.84 827 812 165.3
A 0 226 7132 38.24 827 812 165.3
B 12 111 18260 112.59 833 814 155.0
B 11 111 15998 97.99 833 814 155.0
B 14 111 14615 89.07 833 814 155.0
C 3 247 287198 1525.07 817 827 187.8
C 14 238 127735 675.85 817 827 187.8
C 3 233 49954 261.63 817 827 187.8
D 1 52 46942 230.22 827 807 200.4
D 7 223 43242 211.76 827 807 200.4
D 2 234 26050 125.97 827 807 200.4

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