ASTROSAT CZTI

Data Quality Report

Orbit 43725

Creation date: 2024-06-27T22:55:03.409295
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/AS1A13_003T01_9000005902_43725cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43725cztM0_level2_quad_clean.evt
Size (bytes)652,095,360120,565,440
Size621.9 MB 115.0 MB
Events in quadrant A6,223,509807,439
Events in quadrant B4,261,292836,555
Events in quadrant C5,402,365805,777
Events in quadrant D7,665,734674,628

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236610
B0178910
C0213050
D0279850

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75653204.230007%
B75642242.961396%
C75652723.595506%
D756598913.073364%

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 7565 7565 163 163 2.15% 2.15%
B 7564 7564 123 123 1.63% 1.63%
C 7565 7565 180 180 2.38% 2.38%
D 7565 7565 651 651 8.61% 8.61%

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 15 223 1001276 5581.0 855 837 179.3
A 10 83 850363 4739.12 855 837 179.3
A 14 63 763218 4252.98 855 837 179.3
B 5 235 599635 3623.5 847 820 165.3
B 12 3 90881 544.97 847 820 165.3
B 4 171 69529 415.77 847 820 165.3
C 15 158 1661281 8385.21 839 843 198.0
C 15 157 232848 1171.63 839 843 198.0
C 3 233 150913 757.85 839 843 198.0
D 1 52 1283374 5772.95 805 787 222.2
D 5 235 890662 4005.35 805 787 222.2
D 14 210 315110 1414.77 805 787 222.2

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