ASTROSAT CZTI

Data Quality Report

Orbit 02282

Creation date: 2024-06-27T14:15:38.565751
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/AS1T01_058T01_9000000348_02282cztM0_level2.evt modeM0/AS1T01_058T01_9000000348_02282cztM0_level2_quad_clean.evt
Size (bytes)346,515,84075,372,480
Size330.5 MB 71.9 MB
Events in quadrant A2,501,084463,681
Events in quadrant B2,565,627472,464
Events in quadrant C2,570,197473,881
Events in quadrant D2,454,587459,599

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B110
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119391
B0120031
C0120361
D0120291

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5906180.304775%
B5906350.592618%
C590680.135455%
D590670.118524%

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 6930 5905 0 0 0.00% 0.00%
B 6931 5906 3 3 0.04% 0.05%
C 6931 5907 4 4 0.06% 0.07%
D 6931 5907 1 1 0.01% 0.02%

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 12 194 7321 50.22 648 634 133.2
A 0 226 6975 47.62 648 634 133.2
A 13 9 2025 10.45 648 634 133.2
B 0 228 17776 135.89 655 639 126.1
B 15 85 12725 95.84 655 639 126.1
B 12 111 9623 71.24 655 639 126.1
C 5 234 84716 570.04 630 633 147.5
C 10 200 9030 56.92 630 633 147.5
C 10 65 7788 48.5 630 633 147.5
D 13 169 24833 163.13 625 611 148.5
D 9 64 19689 128.49 625 611 148.5
D 2 253 14619 94.34 625 611 148.5

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