ASTROSAT CZTI

Data Quality Report

Orbit 06612

Creation date: 2024-06-27T15:09:23.751945
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/AS1G06_134T03_9000000894_06612cztM0_level2.evt modeM0/AS1G06_134T03_9000000894_06612cztM0_level2_quad_clean.evt
Size (bytes)635,688,00087,920,640
Size606.2 MB 83.8 MB
Events in quadrant A4,384,161564,821
Events in quadrant B3,462,935580,144
Events in quadrant C2,839,050573,832
Events in quadrant D8,137,275500,686

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172983
B0145772
C0129162
D0286862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63461091.717617%
B63461171.843681%
C6346110.173338%
D634674911.802710%

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 7536 6347 55 55 0.73% 0.87%
B 7536 6347 53 53 0.70% 0.84%
C 7536 6347 3 3 0.04% 0.05%
D 7536 6347 776 776 10.30% 12.23%

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 8 15 1342156 8931.84 734 720 150.2
A 13 248 100268 662.83 734 720 150.2
A 14 111 64406 424.04 734 720 150.2
B 0 219 270672 1915.14 745 727 141.0
B 4 80 115155 811.82 745 727 141.0
B 4 170 82690 581.49 745 727 141.0
C 7 255 18057 104.88 715 719 165.3
C 8 128 11575 65.67 715 719 165.3
C 8 112 6444 34.63 715 719 165.3
D 8 195 3469950 20368.06 684 660 170.3
D 12 221 1035640 6076.33 684 660 170.3
D 2 33 282032 1651.92 684 660 170.3

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