ASTROSAT CZTI

Data Quality Report

Orbit 07409

Creation date: 2024-06-27T15:19:22.208079
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/AS1A02_150T03_9000001018_07409cztM0_level2.evt modeM0/AS1A02_150T03_9000001018_07409cztM0_level2_quad_clean.evt
Size (bytes)415,725,12081,696,960
Size396.5 MB 77.9 MB
Events in quadrant A2,936,629517,961
Events in quadrant B3,133,715526,632
Events in quadrant C2,857,580512,959
Events in quadrant D3,248,267491,349

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127152
B0133011
C0125701
D0138621

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6093641.050386%
B6093951.559166%
C6093430.705728%
D60931612.642376%

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 7343 6094 0 0 0.00% 0.00%
B 7343 6094 2 2 0.03% 0.03%
C 7343 6094 0 0 0.00% 0.00%
D 7343 6094 85 85 1.16% 1.39%

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 3 1 13088 80.73 757 743 152.9
A 0 226 7557 44.56 757 743 152.9
A 12 194 6770 39.41 757 743 152.9
B 11 51 124981 858.64 764 748 144.7
B 0 214 21341 142.33 764 748 144.7
B 4 81 19251 127.88 764 748 144.7
C 13 61 5793 29.88 731 735 169.3
C 1 16 4920 24.72 731 735 169.3
C 12 4 2182 8.55 731 735 169.3
D 10 15 166195 939.44 721 698 176.2
D 13 105 143988 813.38 721 698 176.2
D 14 34 58434 327.74 721 698 176.2

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