ASTROSAT CZTI

Data Quality Report

Orbit 18341

Creation date: 2024-06-27T17:48:35.265439
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/AS1A06_006T01_9000002720_18341cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18341cztM0_level2_quad_clean.evt
Size (bytes)480,991,68084,525,120
Size458.7 MB 80.6 MB
Events in quadrant A3,337,214533,269
Events in quadrant B3,511,234533,345
Events in quadrant C3,381,628526,556
Events in quadrant D3,891,891509,527

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137682
B0142472
C0139252
D0155222

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6547991.512143%
B65471442.199481%
C65471291.970368%
D65471652.520238%

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 7622 6548 0 0 0.00% 0.00%
B 7622 6548 41 41 0.54% 0.63%
C 7622 6548 0 0 0.00% 0.00%
D 7622 6548 69 69 0.91% 1.05%

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 4 2 27224 154.29 853 837 171.0
A 15 191 19521 109.25 853 837 171.0
A 15 174 15651 86.62 853 837 171.0
B 4 171 91677 564.02 848 830 161.1
B 7 220 40286 244.96 848 830 161.1
B 4 216 23563 141.14 848 830 161.1
C 14 238 125303 649.59 819 824 191.6
C 3 233 58601 301.51 819 824 191.6
C 13 61 5867 26.32 819 824 191.6
D 14 34 239134 1171.75 831 806 203.4
D 1 52 223156 1093.19 831 806 203.4
D 12 110 175434 858.56 831 806 203.4

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