ASTROSAT CZTI

Data Quality Report

Orbit 09074

Creation date: 2024-06-27T15:41:13.915819
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/AS1G07_057T04_9000001264_09074cztM0_level2.evt modeM0/AS1G07_057T04_9000001264_09074cztM0_level2_quad_clean.evt
Size (bytes)480,369,60068,901,120
Size458.1 MB 65.7 MB
Events in quadrant A4,055,432410,493
Events in quadrant B3,455,921422,035
Events in quadrant C3,142,231408,105
Events in quadrant D3,453,508392,404

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162243
B0141292
C0133472
D0143992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6496480.738916%
B6496470.723522%
C6496240.369458%
D6496691.062192%

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 7806 6496 10 10 0.13% 0.15%
B 7806 6497 14 14 0.18% 0.22%
C 7806 6497 0 0 0.00% 0.00%
D 7806 6497 38 38 0.49% 0.58%

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 770830 4634.87 828 814 166.1
A 1 162 43756 258.48 828 814 166.1
A 15 239 20747 119.98 828 814 166.1
B 4 80 49230 311.69 836 819 155.3
B 0 219 43013 271.67 836 819 155.3
B 10 16 39538 249.29 836 819 155.3
C 13 61 6234 29.34 805 810 184.9
C 12 4 3565 14.9 805 810 184.9
C 3 202 1953 6.18 805 810 184.9
D 2 14 172890 829.88 793 775 207.4
D 7 71 119099 570.52 793 775 207.4
D 8 195 63508 302.48 793 775 207.4

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