ASTROSAT CZTI

Data Quality Report

Orbit 10758

Creation date: 2024-06-27T16:03:29.571190
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/AS1G07_051T01_9000001550_10758cztM0_level2.evt modeM0/AS1G07_051T01_9000001550_10758cztM0_level2_quad_clean.evt
Size (bytes)632,848,320102,173,760
Size603.5 MB 97.4 MB
Events in quadrant A3,721,800655,063
Events in quadrant B4,853,446652,769
Events in quadrant C3,437,774659,455
Events in quadrant D6,639,085599,191

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163073
B0194942
C0156442
D0249922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75891041.370405%
B75893364.427461%
C7589410.540256%
D75897039.263408%

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 8599 7593 26 26 0.30% 0.34%
B 8599 7593 168 168 1.95% 2.21%
C 8599 7593 0 0 0.00% 0.00%
D 8599 7593 545 545 6.34% 7.18%

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 15 223 59370 317.3 902 882 184.3
A 13 248 58969 315.13 902 882 184.3
A 15 239 46761 248.9 902 882 184.3
B 4 239 1065004 6161.06 901 879 172.7
B 0 214 79568 455.59 901 879 172.7
B 4 81 53159 302.69 901 879 172.7
C 13 61 6600 28.04 877 882 203.9
C 1 0 4944 19.92 877 882 203.9
C 8 128 3929 14.94 877 882 203.9
D 1 52 1959681 9600.2 843 818 204.0
D 5 222 798214 3907.96 843 818 204.0
D 8 195 539215 2638.63 843 818 204.0

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