ASTROSAT CZTI

Data Quality Report

Orbit 38054

Creation date: 2024-06-27T21:47:50.804647
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/AS1A11_044T01_9000005360_38054cztM0_level2.fits modeM0/AS1A11_044T01_9000005360_38054cztM0_level2_quad_clean.evt
Size (bytes)315,489,60095,889,600
Size300.9 MB 91.4 MB
Events in quadrant A2,813,963647,376
Events in quadrant B2,790,505665,585
Events in quadrant C2,652,079642,103
Events in quadrant D3,010,954579,723

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115703
B0116752
C0109162
D0123512

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5274180.341297%
B5274641.213500%
C5274100.189609%
D5274971.839211%

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 8830 5276 7 7 0.08% 0.13%
B 8830 5276 40 40 0.45% 0.76%
C 8830 5276 4 4 0.05% 0.08%
D 8830 5276 80 80 0.91% 1.52%

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 362751 2950.69 611 598 122.7
A 7 3 33280 266.28 611 598 122.7
A 13 6 15715 123.17 611 598 122.7
B 5 172 92571 795.14 614 598 115.7
B 4 171 91260 783.81 614 598 115.7
B 5 184 67830 581.24 614 598 115.7
C 15 214 222576 1586.83 607 610 139.9
C 3 233 25986 181.41 607 610 139.9
C 0 10 15687 107.79 607 610 139.9
D 13 249 299050 2082.06 595 580 143.4
D 12 233 108014 749.44 595 580 143.4
D 10 199 96366 668.18 595 580 143.4

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