ASTROSAT CZTI

Data Quality Report

Orbit 30224

Creation date: 2024-06-27T20:12:21.490870
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/AS1A10_007T01_9000004350_30224cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30224cztM0_level2_quad_clean.evt
Size (bytes)569,724,480109,451,520
Size543.3 MB 104.4 MB
Events in quadrant A3,536,371717,737
Events in quadrant B5,395,884735,544
Events in quadrant C3,656,044707,782
Events in quadrant D4,217,436691,799

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143412
B0204712
C0147632
D0169382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6628961.448401%
B66281702.564876%
C66281502.263126%
D6628771.161738%

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 7948 6629 3 3 0.04% 0.05%
B 7948 6629 4 4 0.05% 0.06%
C 7948 6629 0 0 0.00% 0.00%
D 7948 6629 26 26 0.33% 0.39%

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 8 192 25871 138.66 910 896 180.1
A 13 254 12166 62.57 910 896 180.1
A 3 137 8123 40.12 910 896 180.1
B 6 159 1807585 10747.72 902 881 168.1
B 12 111 19853 112.86 902 881 168.1
B 5 172 19571 111.18 902 881 168.1
C 14 238 155684 752.32 882 892 205.8
C 3 233 34466 163.18 882 892 205.8
C 14 254 17966 82.98 882 892 205.8
D 1 52 303850 1442.99 882 864 210.0
D 8 195 273462 1298.26 882 864 210.0
D 7 223 204586 970.24 882 864 210.0

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