ASTROSAT CZTI

Data Quality Report

Orbit 22319

Creation date: 2024-06-27T18:39:24.607587
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/AS1A07_149T01_9000003304_22319cztM0_level2.evt modeM0/AS1A07_149T01_9000003304_22319cztM0_level2_quad_clean.evt
Size (bytes)456,799,680117,763,200
Size435.6 MB 112.3 MB
Events in quadrant A3,203,342781,889
Events in quadrant B3,318,072822,308
Events in quadrant C3,359,388778,683
Events in quadrant D3,520,652739,260

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133732
B0136702
C0137232
D0145982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6377110.172495%
B6377320.501803%
C6377480.752705%
D6377961.505410%

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 7747 6378 0 0 0.00% 0.00%
B 7747 6378 0 0 0.00% 0.00%
C 7747 6378 0 0 0.00% 0.00%
D 7747 6378 64 64 0.83% 1.00%

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 13 254 9109 50.55 831 817 164.0
A 0 226 7148 38.6 831 817 164.0
A 3 137 6530 34.83 831 817 164.0
B 12 111 17703 108.68 846 829 155.3
B 11 111 15602 95.15 846 829 155.3
B 14 111 14612 88.77 846 829 155.3
C 14 238 133109 698.9 825 831 189.3
C 0 10 10807 52.71 825 831 189.3
C 13 61 5693 25.69 825 831 189.3
D 1 52 314315 1606.54 811 788 195.2
D 13 174 49756 250.92 811 788 195.2
D 2 136 35874 179.78 811 788 195.2

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