ASTROSAT CZTI

Data Quality Report

Orbit 46469

Creation date: 2024-06-27T23:23:31.595682
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/AS1T05_203T01_9000006214_46469cztM0_level2.fits modeM0/AS1T05_203T01_9000006214_46469cztM0_level2_quad_clean.evt
Size (bytes)585,241,920115,620,480
Size558.1 MB 110.3 MB
Events in quadrant A8,239,290745,957
Events in quadrant B4,797,676785,922
Events in quadrant C3,189,376765,153
Events in quadrant D4,861,110685,761

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0294092
B0194812
C0150702
D0197632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74345847.855798%
B74343955.313425%
C7435140.188299%
D74353264.384667%

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 8859 7436 325 325 3.67% 4.37%
B 8859 7436 271 271 3.06% 3.64%
C 8860 7437 0 0 0.00% 0.00%
D 8860 7437 272 272 3.07% 3.66%

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 3498042 20774.06 804 786 168.3
A 15 235 926556 5499.17 804 786 168.3
A 0 247 554999 3292.08 804 786 168.3
B 5 185 658310 4045.91 811 785 162.5
B 5 29 545397 3351.13 811 785 162.5
B 10 128 103810 633.94 811 785 162.5
C 3 233 18247 92.46 800 804 188.7
C 14 254 17282 87.34 800 804 188.7
C 9 54 17027 85.99 800 804 188.7
D 2 249 698607 3535.12 786 763 197.4
D 8 176 460531 2329.08 786 763 197.4
D 13 249 311628 1574.77 786 763 197.4

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