ASTROSAT CZTI

Data Quality Report

Orbit 17064

Creation date: 2024-06-27T17:31:32.643730
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/AS1T03_004T01_9000002532_17064cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17064cztM0_level2_quad_clean.evt
Size (bytes)497,188,80082,848,960
Size474.2 MB 79.0 MB
Events in quadrant A3,101,865532,471
Events in quadrant B3,258,051552,532
Events in quadrant C4,838,998503,702
Events in quadrant D3,436,758485,899

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130442
B0133932
C0187474
D0142532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6220300.482315%
B6220430.691318%
C62191712.749638%
D62191532.460203%

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 7586 6223 1 1 0.01% 0.02%
B 7586 6223 2 2 0.03% 0.03%
C 7585 6222 7 7 0.09% 0.11%
D 7585 6222 93 93 1.23% 1.49%

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 4 2 9686 55.66 804 790 159.8
A 0 226 6876 38.08 804 790 159.8
A 12 194 5783 31.24 804 790 159.8
B 0 197 29337 188.64 816 799 151.3
B 12 111 17531 110.6 816 799 151.3
B 11 111 15000 93.87 816 799 151.3
C 3 233 1697464 9512.28 771 778 178.4
C 14 238 120271 669.92 771 778 178.4
C 9 54 11171 58.27 771 778 178.4
D 10 70 300053 1619.79 767 745 184.8
D 5 222 130976 704.78 767 745 184.8
D 12 110 33439 176.93 767 745 184.8

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