ASTROSAT CZTI

Data Quality Report

Orbit 05151

Creation date: 2024-06-27T14:52:00.529748
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_102T01_9000000650_05151cztM0_level2.evt modeM0/AS1G05_102T01_9000000650_05151cztM0_level2_quad_clean.evt
Size (bytes)448,997,76056,416,320
Size428.2 MB 53.8 MB
Events in quadrant A3,062,651317,382
Events in quadrant B3,946,504314,810
Events in quadrant C3,123,657317,602
Events in quadrant D3,025,347306,537

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132913
B0157722
C0133772
D0134742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6468370.572047%
B64681973.045764%
C6468500.773036%
D6468400.618429%

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 7698 6469 0 0 0.00% 0.00%
B 7698 6469 110 110 1.43% 1.70%
C 7698 6469 0 0 0.00% 0.00%
D 7698 6469 8 8 0.10% 0.12%

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 12 194 7855 43.33 795 778 163.3
A 0 226 7787 42.91 795 778 163.3
A 0 50 6088 32.51 795 778 163.3
B 8 3 649578 4291.73 804 789 151.2
B 7 252 48382 314.83 804 789 151.2
B 0 219 37124 240.36 804 789 151.2
C 1 16 96183 528.0 776 780 180.7
C 13 61 6222 30.12 776 780 180.7
C 3 202 1940 6.42 776 780 180.7
D 10 15 28254 145.75 769 745 188.7
D 2 136 24627 126.53 769 745 188.7
D 2 14 23495 120.53 769 745 188.7

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