ASTROSAT CZTI

Data Quality Report

Orbit 19443

Creation date: 2024-06-27T18:02:58.508510
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_221T01_9000002888_19443cztM0_level2.evt modeM0/AS1A05_221T01_9000002888_19443cztM0_level2_quad_clean.evt
Size (bytes)588,182,40087,033,600
Size560.9 MB 83.0 MB
Events in quadrant A3,558,273541,770
Events in quadrant B3,638,082546,740
Events in quadrant C3,529,819527,787
Events in quadrant D6,592,945512,030

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152512
B0154402
C0150462
D0246542

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7285630.864791%
B72851191.633493%
C72841131.551345%
D728478610.790774%

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 7695 7286 2 2 0.03% 0.03%
B 7695 7286 2 2 0.03% 0.03%
C 7694 7284 1 1 0.01% 0.01%
D 7694 7284 533 533 6.93% 7.32%

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 5 16 33027 173.8 904 884 184.9
A 3 1 26582 138.95 904 884 184.9
A 13 254 10803 53.63 904 884 184.9
B 0 197 32545 181.38 900 879 174.6
B 12 111 20466 112.19 900 879 174.6
B 11 111 18013 98.14 900 879 174.6
C 14 238 134830 660.0 865 872 203.0
C 0 207 13443 61.94 865 872 203.0
C 13 61 6140 25.96 865 872 203.0
D 7 238 2087197 10212.91 837 811 204.3
D 1 52 1293944 6329.92 837 811 204.3
D 2 234 32741 156.3 837 811 204.3

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