ASTROSAT CZTI

Data Quality Report

Orbit 44070

Creation date: 2024-06-27T22:59:01.191972
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/AS1A13_029T01_9000005940_44070cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44070cztM0_level2_quad_clean.evt
Size (bytes)434,655,360113,532,480
Size414.5 MB 108.3 MB
Events in quadrant A4,399,642763,518
Events in quadrant B3,107,149802,647
Events in quadrant C3,290,467740,713
Events in quadrant D4,767,234660,501

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177002
B0138962
C0144972
D0187632

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67531211.791796%
B6753761.125426%
C6753981.451207%
D67533875.730786%

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 7718 6754 3 3 0.04% 0.04%
B 7718 6754 0 0 0.00% 0.00%
C 7718 6754 41 41 0.53% 0.61%
D 7718 6754 304 304 3.94% 4.50%

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 10 83 1269999 7917.38 779 763 160.3
A 7 3 71642 442.14 779 763 160.3
A 10 248 13020 76.46 779 763 160.3
B 12 111 19999 124.21 785 759 154.9
B 11 111 18405 113.92 785 759 154.9
B 14 111 18276 113.08 785 759 154.9
C 14 96 151491 826.27 771 777 182.4
C 14 254 81609 443.15 771 777 182.4
C 11 16 28946 154.43 771 777 182.4
D 13 249 1308724 7032.41 750 729 186.0
D 5 222 152905 818.17 750 729 186.0
D 2 249 117892 629.92 750 729 186.0

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