ASTROSAT CZTI

Data Quality Report

Orbit 05373

Creation date: 2024-06-27T14:54:30.062184
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/AS1G05_021T02_9000000680_05373cztM0_level2.evt modeM0/AS1G05_021T02_9000000680_05373cztM0_level2_quad_clean.evt
Size (bytes)509,728,32066,006,720
Size486.1 MB 62.9 MB
Events in quadrant A3,568,982370,751
Events in quadrant B3,595,903378,227
Events in quadrant C3,645,123380,116
Events in quadrant D4,129,171358,930

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158022
B0154811
C0153191
D0176071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73341001.363512%
B7334801.090810%
C7334720.981729%
D73342753.749659%

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 7779 7334 30 30 0.39% 0.41%
B 7779 7334 1 1 0.01% 0.01%
C 7779 7334 0 0 0.00% 0.00%
D 7779 7334 206 206 2.65% 2.81%

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 0 50 167501 946.78 849 828 176.0
A 15 174 134528 759.48 849 828 176.0
A 12 194 8222 42.0 849 828 176.0
B 4 81 66939 395.31 867 845 167.2
B 4 80 52982 311.83 867 845 167.2
B 14 167 41274 241.81 867 845 167.2
C 1 16 391240 1993.29 834 841 195.9
C 13 61 6736 30.1 834 841 195.9
C 3 202 2082 6.34 834 841 195.9
D 7 237 381424 1896.99 811 786 200.7
D 2 136 257949 1281.63 811 786 200.7
D 4 95 134052 664.16 811 786 200.7

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