ASTROSAT CZTI

Data Quality Report

Orbit 08384

Creation date: 2024-06-27T15:32:05.528272
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/AS1G07_076T04_9000001172_08384cztM0_level2.evt modeM0/AS1G07_076T04_9000001172_08384cztM0_level2_quad_clean.evt
Size (bytes)482,616,00087,684,480
Size460.3 MB 83.6 MB
Events in quadrant A3,350,831546,303
Events in quadrant B3,976,847547,419
Events in quadrant C3,313,711536,504
Events in quadrant D3,486,914525,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148612
B0164721
C0148651
D0153771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71772563.566950%
B71772974.138219%
C71771932.689146%
D71772082.898147%

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 7257 7177 0 0 0.00% 0.00%
B 7257 7178 34 34 0.47% 0.47%
C 7257 7178 0 0 0.00% 0.00%
D 7257 7178 11 11 0.15% 0.15%

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 0 226 8022 40.19 869 848 178.5
A 12 194 7832 39.12 869 848 178.5
A 15 236 5729 27.34 869 848 178.5
B 4 48 448642 2669.25 868 847 167.8
B 0 214 64220 377.76 868 847 167.8
B 0 231 28127 162.61 868 847 167.8
C 13 61 6347 27.76 846 847 198.1
C 8 128 5521 23.59 846 847 198.1
C 1 16 4698 19.44 846 847 198.1
D 1 52 67226 299.65 841 819 221.6
D 14 34 48152 213.58 841 819 221.6
D 6 112 46943 208.13 841 819 221.6

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