ASTROSAT CZTI

Data Quality Report

Orbit 47029

Creation date: 2024-06-27T23:30:56.659916
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/AS1C09_005T01_9000006296_47029cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47029cztM0_level2_quad_clean.evt
Size (bytes)533,160,000107,242,560
Size508.5 MB 102.3 MB
Events in quadrant A6,648,691711,069
Events in quadrant B5,969,984677,462
Events in quadrant C2,983,686720,677
Events in quadrant D3,602,953661,371

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243893
B0223852
C0141382
D0156002

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68403054.459064%
B684078611.491228%
C6840530.774854%
D68411472.148809%

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 7135 6843 2 2 0.03% 0.03%
B 7135 6843 372 372 5.21% 5.44%
C 7135 6843 4 4 0.06% 0.06%
D 7136 6844 52 52 0.73% 0.76%

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 3549193 22556.0 752 733 157.3
A 9 191 151153 956.15 752 733 157.3
A 0 243 28142 174.23 752 733 157.3
B 3 112 2709882 18773.13 735 713 144.3
B 4 171 122272 842.34 735 713 144.3
B 5 255 62402 427.47 735 713 144.3
C 3 233 32952 186.0 744 747 173.1
C 14 254 21599 120.43 744 747 173.1
C 12 250 14030 76.71 744 747 173.1
D 1 52 373467 2021.47 743 720 184.4
D 12 238 89668 482.38 743 720 184.4
D 12 233 58737 314.64 743 720 184.4

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