ASTROSAT CZTI

Data Quality Report

Orbit 04748

Creation date: 2024-06-27T14:46:18.651324
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/AS1G05_195T01_9000000598_04748cztM0_level2.evt modeM0/AS1G05_195T01_9000000598_04748cztM0_level2_quad_clean.evt
Size (bytes)419,595,84079,868,160
Size400.2 MB 76.2 MB
Events in quadrant A2,851,493499,156
Events in quadrant B3,142,617504,564
Events in quadrant C2,978,463505,305
Events in quadrant D3,307,747471,303

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129373
B0135752
C0133002
D0144862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6283260.413815%
B6283661.050454%
C6283210.334235%
D62831632.594302%

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 7563 6284 0 0 0.00% 0.00%
B 7563 6284 19 19 0.25% 0.30%
C 7563 6284 9 9 0.12% 0.14%
D 7563 6284 128 128 1.69% 2.04%

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 0 226 7722 46.35 735 719 151.1
A 12 194 7455 44.58 735 719 151.1
A 15 174 4539 25.28 735 719 151.1
B 14 167 130969 914.78 747 731 142.4
B 15 204 30392 208.34 747 731 142.4
B 10 16 27822 190.28 747 731 142.4
C 14 48 170226 1024.44 713 718 165.5
C 12 4 16509 95.43 713 718 165.5
C 8 208 7525 41.14 713 718 165.5
D 1 31 232047 1397.24 693 672 165.6
D 12 217 145148 872.47 693 672 165.6
D 13 239 81041 485.34 693 672 165.6

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