ASTROSAT CZTI

Data Quality Report

Orbit 47953

Creation date: 2024-08-10T11:47:53.012222
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_062T02_9000006384_47953cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47953cztM0_level2_quad_clean.evt
Size (bytes)686,505,600104,751,360
Size654.7 MB 99.9 MB
Events in quadrant A7,538,942704,748
Events in quadrant B3,077,634787,478
Events in quadrant C3,043,106752,427
Events in quadrant D11,262,116484,411

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02718720
B01341410
C0133196
D03789154

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63415949.367608%
B6342590.930306%
C6344320.504414%
D6338233536.841275%

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 7597 6347 337 337 4.44% 5.31%
B 7598 6347 0 0 0.00% 0.00%
C 7597 6348 13 13 0.17% 0.20%
D 7597 6343 2372 2372 31.22% 37.40%

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 3762113 25143.61 729 715 149.6
A 0 31 954450 6375.38 729 715 149.6
A 3 137 8273 50.52 729 715 149.6
B 0 198 61907 416.65 754 731 146.8
B 12 111 18231 119.19 754 731 146.8
B 11 111 17194 112.13 754 731 146.8
C 12 2 102710 585.26 746 752 174.2
C 14 254 24104 134.05 746 752 174.2
C 13 61 4854 23.55 746 752 174.2
D 2 165 8513744 51199.36 660 638 166.3
D 11 224 88135 526.22 660 638 166.3
D 2 234 25637 150.35 660 638 166.3

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