ASTROSAT CZTI

Data Quality Report

Orbit 23044

Creation date: 2024-06-27T18:49:11.009884
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/AS1C05_004T01_9000003404_23044cztM0_level2.evt modeM0/AS1C05_004T01_9000003404_23044cztM0_level2_quad_clean.evt
Size (bytes)351,915,84079,908,480
Size335.6 MB 76.2 MB
Events in quadrant A2,361,483525,950
Events in quadrant B2,530,110540,608
Events in quadrant C2,523,469513,893
Events in quadrant D2,912,195498,797

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101691
B0105861
C0105431
D0120231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4850300.618557%
B4850681.402062%
C48501182.432990%
D48501402.886598%

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 4850 4850 0 0 0.00% 0.00%
B 4850 4850 18 18 0.37% 0.37%
C 4850 4850 38 38 0.78% 0.78%
D 4850 4850 66 66 1.36% 1.36%

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 6 16 16628 132.97 608 598 120.6
A 13 254 7663 58.61 608 598 120.6
A 0 226 5156 37.81 608 598 120.6
B 4 216 51904 454.45 610 595 112.9
B 0 190 30373 263.75 610 595 112.9
B 4 173 27443 237.8 610 595 112.9
C 0 10 110996 807.11 589 593 136.8
C 14 238 94312 685.14 589 593 136.8
C 0 207 17034 120.19 589 593 136.8
D 1 52 366552 2597.84 588 572 140.9
D 13 153 286081 2026.63 588 572 140.9
D 2 234 17613 120.96 588 572 140.9

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