ASTROSAT CZTI

Data Quality Report

Orbit 14242

Creation date: 2024-06-27T16:52:24.569009
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/AS1G08_069T01_9000002102_14242cztM0_level2.evt modeM0/AS1G08_069T01_9000002102_14242cztM0_level2_quad_clean.evt
Size (bytes)523,693,44083,393,280
Size499.4 MB 79.5 MB
Events in quadrant A3,450,712541,817
Events in quadrant B3,512,141537,108
Events in quadrant C3,471,641519,623
Events in quadrant D5,002,366490,704

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142183
B0141882
C0140472
D0196662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62411051.682423%
B62411392.227207%
C6241861.377984%
D62412323.717353%

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 7507 6242 4 4 0.05% 0.06%
B 7507 6243 22 22 0.29% 0.35%
C 7507 6243 0 0 0.00% 0.00%
D 7507 6243 112 112 1.49% 1.79%

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 127566 743.13 853 835 170.5
A 15 69 22062 124.47 853 835 170.5
A 9 143 12117 66.16 853 835 170.5
B 0 229 175144 1119.68 838 819 155.7
B 4 97 32427 203.02 838 819 155.7
B 12 111 17941 109.97 838 819 155.7
C 3 233 244603 1292.46 826 832 188.6
C 14 234 5921 26.98 826 832 188.6
C 13 61 5846 26.58 826 832 188.6
D 5 222 799152 4165.19 817 799 191.7
D 8 195 693831 3615.7 817 799 191.7
D 10 199 204920 1064.94 817 799 191.7

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