ASTROSAT CZTI

Data Quality Report

Orbit 47346

Creation date: 2024-06-30T08:42:33.496700
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_093T09_9000006320_47346cztM0_level2.fits modeM0/AS1A13_093T09_9000006320_47346cztM0_level2_quad_clean.evt
Size (bytes)485,850,240109,958,400
Size463.3 MB 104.9 MB
Events in quadrant A7,260,667700,580
Events in quadrant B3,625,907759,343
Events in quadrant C3,015,518734,100
Events in quadrant D3,559,141665,559

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260482
B0154242
C0139512
D0155872

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67454496.656783%
B67451622.401779%
C6745290.429948%
D67451181.749444%

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 9040 6747 136 136 1.50% 2.02%
B 9040 6747 26 26 0.29% 0.39%
C 9040 6747 1 1 0.01% 0.01%
D 9040 6747 94 94 1.04% 1.39%

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 3809793 24314.27 753 736 156.7
A 15 235 342631 2182.41 753 736 156.7
A 9 191 182837 1162.4 753 736 156.7
B 14 167 299518 1948.51 772 749 153.3
B 0 190 141051 915.02 772 749 153.3
B 0 198 68104 439.27 772 749 153.3
C 3 233 41906 228.79 759 763 179.8
C 12 2 9949 51.08 759 763 179.8
C 13 61 5026 23.71 759 763 179.8
D 7 38 160554 848.34 747 725 188.4
D 12 2 152385 804.98 747 725 188.4
D 2 165 149298 788.6 747 725 188.4

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