ASTROSAT CZTI

Data Quality Report

Orbit 43078

Creation date: 2024-06-27T22:47:43.415889
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_9000005844_43078cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43078cztM0_level2_quad_clean.evt
Size (bytes)348,171,84089,596,800
Size332.0 MB 85.4 MB
Events in quadrant A3,361,862592,299
Events in quadrant B2,797,957612,143
Events in quadrant C2,532,257582,218
Events in quadrant D3,765,919539,494

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133192
B0120892
C0111352
D0151562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55291001.808645%
B5529390.705372%
C552840.072359%
D5528781.410999%

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 7170 5530 69 69 0.96% 1.25%
B 7170 5530 18 18 0.25% 0.33%
C 7169 5529 0 0 0.00% 0.00%
D 7169 5529 81 81 1.13% 1.47%

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 600100 4869.01 595 580 123.1
A 15 237 313974 2545.24 595 580 123.1
A 13 248 94956 766.48 595 580 123.1
B 0 229 186827 1622.56 592 577 114.8
B 5 255 151309 1313.14 592 577 114.8
B 0 186 73525 635.5 592 577 114.8
C 15 214 250086 1838.01 577 580 135.7
C 12 2 10002 69.41 577 580 135.7
C 12 249 5520 36.39 577 580 135.7
D 2 16 916427 6482.76 578 560 141.3
D 1 52 399286 2822.29 578 560 141.3
D 13 249 61513 431.44 578 560 141.3

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