ASTROSAT CZTI

Data Quality Report

Orbit 05686

Creation date: 2024-06-27T14:57:57.237927
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_115T01_9000000734_05686cztM0_level2.evt modeM0/AS1G06_115T01_9000000734_05686cztM0_level2_quad_clean.evt
Size (bytes)440,758,08060,278,400
Size420.3 MB 57.5 MB
Events in quadrant A3,037,376344,342
Events in quadrant B3,402,340346,675
Events in quadrant C3,168,614354,241
Events in quadrant D3,310,688338,729

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01313812
B01395615
C01363318
D01394414

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6318921.456157%
B6317991.567200%
C6315831.314331%
D6317871.377236%

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 7503 6324 0 0 0.00% 0.00%
B 7503 6324 4 4 0.05% 0.06%
C 7503 6324 0 0 0.00% 0.00%
D 7503 6324 18 18 0.24% 0.28%

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 15 174 11012 64.7 782 766 158.4
A 0 50 8185 46.85 782 766 158.4
A 12 194 7703 43.81 782 766 158.4
B 15 204 221322 1478.81 791 774 149.1
B 11 51 63718 422.05 791 774 149.1
B 4 81 35926 235.7 791 774 149.1
C 1 16 163478 927.86 770 773 175.4
C 13 61 6340 31.75 770 773 175.4
C 3 9 2126 7.72 770 773 175.4
D 9 102 149066 796.56 768 745 186.2
D 2 152 87661 466.79 768 745 186.2
D 2 14 57717 305.97 768 745 186.2

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