ASTROSAT CZTI

Data Quality Report

Orbit 14038

Creation date: 2024-06-27T16:49:29.927441
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/AS1G08_002T01_9000002072_14038cztM0_level2.evt modeM0/AS1G08_002T01_9000002072_14038cztM0_level2_quad_clean.evt
Size (bytes)318,781,44067,691,520
Size304.0 MB 64.6 MB
Events in quadrant A2,158,047444,468
Events in quadrant B2,166,437446,501
Events in quadrant C2,160,286439,787
Events in quadrant D2,883,183423,127

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090671
B090611
C089481
D0111031

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4200741.761905%
B4200751.785714%
C4200591.404762%
D42001914.547619%

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 5326 4202 0 0 0.00% 0.00%
B 5326 4202 0 0 0.00% 0.00%
C 5326 4202 0 0 0.00% 0.00%
D 5326 4202 142 142 2.67% 3.38%

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 1 162 15665 134.29 552 541 112.6
A 1 178 6502 52.93 552 541 112.6
A 14 111 6389 51.92 552 541 112.6
B 0 214 16578 154.23 542 531 104.0
B 3 209 12737 117.31 542 531 104.0
B 12 111 12035 110.56 542 531 104.0
C 3 233 68893 547.74 536 540 124.8
C 13 61 3778 25.95 536 540 124.8
C 14 220 2752 17.73 536 540 124.8
D 13 104 416491 3288.99 533 522 126.5
D 10 157 279866 2208.72 533 522 126.5
D 1 52 110470 869.34 533 522 126.5

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