ASTROSAT CZTI

Data Quality Report

Orbit 14860

Creation date: 2024-06-27T17:00:34.272245
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/AS1A04_218T01_9000002194_14860cztM0_level2.evt modeM0/AS1A04_218T01_9000002194_14860cztM0_level2_quad_clean.evt
Size (bytes)595,293,12069,511,680
Size567.7 MB 66.3 MB
Events in quadrant A3,317,567425,104
Events in quadrant B3,658,492419,399
Events in quadrant C3,381,535417,012
Events in quadrant D7,202,550361,545

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142923
B0151252
C0141852
D0259522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6908390.564563%
B6908630.911986%
C6908290.419803%
D6908138820.092646%

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 8779 6911 0 0 0.00% 0.00%
B 8779 6911 5 5 0.06% 0.07%
C 8779 6911 1 1 0.01% 0.01%
D 8779 6911 1278 1278 14.56% 18.49%

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 12 189 74628 434.5 841 824 169.9
A 9 143 7536 39.51 841 824 169.9
A 0 226 7468 39.11 841 824 169.9
B 0 189 96982 600.57 838 817 160.1
B 0 219 86894 537.57 838 817 160.1
B 3 64 72591 448.24 838 817 160.1
C 3 233 213151 1136.16 809 814 186.9
C 14 234 6813 32.1 809 814 186.9
C 13 61 5790 26.63 809 814 186.9
D 13 104 3595597 18003.53 749 731 199.7
D 7 254 311859 1558.17 749 731 199.7
D 15 0 288971 1443.54 749 731 199.7

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