ASTROSAT CZTI

Data Quality Report

Orbit 31543

Creation date: 2024-06-27T20:29:46.547287
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/AS1A10_056T01_9000004598_31543cztM0_level2.evt modeM0/AS1A10_056T01_9000004598_31543cztM0_level2_quad_clean.evt
Size (bytes)457,882,56083,306,880
Size436.7 MB 79.4 MB
Events in quadrant A2,737,484538,592
Events in quadrant B4,501,224547,373
Events in quadrant C2,910,042520,045
Events in quadrant D3,321,386508,148

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119721
B0178411
C0123682
D0136461

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A585090.153846%
B5851510.871646%
C5850821.401709%
D5850180.307692%

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 7010 5851 0 0 0.00% 0.00%
B 7011 5852 5 5 0.07% 0.09%
C 7010 5851 29 29 0.41% 0.50%
D 7010 5851 4 4 0.06% 0.07%

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 8991 57.76 710 697 143.6
A 3 137 7172 45.09 710 697 143.6
A 0 226 5812 35.62 710 697 143.6
B 6 159 1569969 11657.46 706 688 134.6
B 0 190 69955 514.55 706 688 134.6
B 4 80 49399 361.85 706 688 134.6
C 14 238 110457 703.0 673 678 156.2
C 0 10 102174 649.96 673 678 156.2
C 4 175 19485 120.44 673 678 156.2
D 8 195 699930 4426.72 677 661 158.0
D 10 253 32179 199.52 677 661 158.0
D 2 234 23029 141.6 677 661 158.0

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