ASTROSAT CZTI

Data Quality Report

Orbit 43602

Creation date: 2024-06-27T22:53:33.139955
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/AS1C07_001T10_9000005890_43602cztM0_level2.fits modeM0/AS1C07_001T10_9000005890_43602cztM0_level2_quad_clean.evt
Size (bytes)1,115,856,00066,389,760
Size1.0 GB 63.3 MB
Events in quadrant A4,555,887681,615
Events in quadrant B7,376,218651,313
Events in quadrant C15,196,298184,487
Events in quadrant D13,720,01572,065

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01783314
B02606517
C04928051
D04489824

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59272133.593724%
B5929113819.193793%
C5925585798.852321%
D59285928100.000000%

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 6946 5930 88 88 1.27% 1.48%
B 6946 5931 900 900 12.96% 15.17%
C 6946 5924 5666 5666 81.57% 95.64%
D 6945 5927 4749 4749 68.38% 80.12%

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 10 83 773360 5683.08 667 654 136.0
A 14 63 462797 3398.96 667 654 136.0
A 12 189 367203 2695.89 667 654 136.0
B 4 206 3348368 27597.04 628 611 121.3
B 5 235 638187 5255.82 628 611 121.3
B 0 219 215692 1773.01 628 611 121.3
C 15 142 7504750 164290.02 192 193 45.7
C 15 126 2549946 55819.28 192 193 45.7
C 15 157 1927996 42203.53 192 193 45.7
D 8 192 8043762 256600.28 95 91 31.3
D 4 212 2281107 72766.45 95 91 31.3
D 4 216 967320 30855.47 95 91 31.3

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