ASTROSAT CZTI

Data Quality Report

Orbit 23612

Creation date: 2024-06-27T18:54:15.516121
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/AS1A07_138T01_9000003466_23612cztM0_level2.evt modeM0/AS1A07_138T01_9000003466_23612cztM0_level2_quad_clean.evt
Size (bytes)377,746,56053,184,960
Size360.2 MB 50.7 MB
Events in quadrant A2,280,297333,145
Events in quadrant B4,243,678280,758
Events in quadrant C2,344,554335,501
Events in quadrant D2,246,749325,626

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010110
B0997
C01036
D01033

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010672764
B0177852125
C010718669
D010773730

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053
B074
C051
D052

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A47771062.218966%
B465684618.170103%
C48411352.788680%
D4809861.788314%

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 5448 4990 0 0 0.00% 0.00%
B 5447 4830 521 521 9.56% 10.79%
C 5446 5019 1 1 0.02% 0.02%
D 5447 5001 2 2 0.04% 0.04%

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 13 254 7217 55.28 591 578 120.1
A 3 137 5583 41.67 591 578 120.1
A 0 226 4991 36.75 591 578 120.1
B 3 64 2200139 21911.04 516 502 100.4
B 12 111 12524 119.75 516 502 100.4
B 11 111 10971 104.28 516 502 100.4
C 14 238 89856 646.79 576 579 138.0
C 10 9 5810 37.9 576 579 138.0
C 7 247 4220 26.38 576 579 138.0
D 1 52 25609 176.96 580 562 141.5
D 12 233 23730 163.68 580 562 141.5
D 2 234 19334 132.63 580 562 141.5

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