ASTROSAT CZTI

Data Quality Report

Orbit 10045

Creation date: 2024-06-27T15:54:10.989259
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/AS1A03_052T01_9000001436_10045cztM0_level2.evt modeM0/AS1A03_052T01_9000001436_10045cztM0_level2_quad_clean.evt
Size (bytes)494,619,84088,704,000
Size471.7 MB 84.6 MB
Events in quadrant A3,574,857572,791
Events in quadrant B3,289,906583,433
Events in quadrant C2,995,158563,644
Events in quadrant D4,692,298526,797

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148033
B0138392
C0131402
D0181262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6296871.381830%
B6296851.350064%
C6296500.794155%
D629763110.020645%

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 7601 6297 2 2 0.03% 0.03%
B 7601 6296 4 4 0.05% 0.06%
C 7601 6297 0 0 0.00% 0.00%
D 7602 6298 540 540 7.10% 8.57%

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 8 15 453840 2805.81 795 781 161.5
A 15 174 52195 318.41 795 781 161.5
A 0 226 7542 41.87 795 781 161.5
B 4 81 93157 609.26 797 779 151.6
B 0 214 28190 180.78 797 779 151.6
B 10 247 24922 159.23 797 779 151.6
C 14 67 9949 51.41 764 769 178.6
C 13 61 5879 28.61 764 769 178.6
C 8 222 4926 23.28 764 769 178.6
D 1 20 1377650 6975.02 730 715 197.4
D 7 71 141352 712.41 730 715 197.4
D 2 152 138009 695.48 730 715 197.4

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