ASTROSAT CZTI

Data Quality Report

Orbit 17617

Creation date: 2024-06-27T17:38:41.858454
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_027T01_9000002608_17617cztM0_level2.evt modeM0/AS1T03_027T01_9000002608_17617cztM0_level2_quad_clean.evt
Size (bytes)466,511,04096,226,560
Size444.9 MB 91.8 MB
Events in quadrant A3,292,590624,781
Events in quadrant B3,312,618631,876
Events in quadrant C3,923,852601,885
Events in quadrant D3,154,693599,455

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136742
B0137782
C0157402
D0136452

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65441181.803178%
B65441442.200489%
C65441772.704768%
D6544781.191932%

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 7649 6544 0 0 0.00% 0.00%
B 7649 6544 0 0 0.00% 0.00%
C 7649 6544 0 0 0.00% 0.00%
D 7649 6545 3 3 0.04% 0.05%

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 13 210 22025 123.52 851 833 171.6
A 0 226 7509 38.91 851 833 171.6
A 12 194 6213 31.36 851 833 171.6
B 12 111 19104 112.78 843 820 162.1
B 11 111 16743 98.21 843 820 162.1
B 14 111 14759 85.98 843 820 162.1
C 3 233 627126 3382.06 799 805 185.2
C 14 238 125295 672.23 799 805 185.2
C 5 218 54183 288.24 799 805 185.2
D 13 189 30089 147.18 822 799 199.0
D 2 234 22259 107.83 822 799 199.0
D 7 96 10524 48.87 822 799 199.0

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