ASTROSAT CZTI

Data Quality Report

Orbit 11568

Creation date: 2024-06-27T16:15:11.207242
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_112T01_9000001698_11568cztM0_level2.evt modeM0/AS1A04_112T01_9000001698_11568cztM0_level2_quad_clean.evt
Size (bytes)626,227,200106,346,880
Size597.2 MB 101.4 MB
Events in quadrant A5,799,279671,182
Events in quadrant B5,164,515681,719
Events in quadrant C3,392,915682,285
Events in quadrant D4,095,453658,632

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224143
B0203782
C0156192
D0176192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75765367.074974%
B75765547.312566%
C7576991.306758%
D75762653.497888%

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 9012 7579 168 168 1.86% 2.22%
B 9012 7579 241 241 2.67% 3.18%
C 9012 7579 0 0 0.00% 0.00%
D 9012 7579 103 103 1.14% 1.36%

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 8 5 1936105 10884.24 877 859 177.8
A 1 162 154875 866.22 877 859 177.8
A 1 178 96904 540.18 877 859 177.8
B 4 239 1243015 7403.8 882 859 167.8
B 15 204 202731 1203.25 882 859 167.8
B 11 51 143212 848.49 882 859 167.8
C 13 61 6644 28.83 870 870 200.3
C 3 202 2248 6.88 870 870 200.3
C 7 247 1884 5.06 870 870 200.3
D 13 137 307032 1494.15 862 835 204.9
D 2 120 153153 743.27 862 835 204.9
D 10 253 150965 732.59 862 835 204.9

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