ASTROSAT CZTI

Data Quality Report

Orbit 10291

Creation date: 2024-06-27T15:57:30.567695
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_072T01_9000001484_10291cztM0_level2.evt modeM0/AS1A03_072T01_9000001484_10291cztM0_level2_quad_clean.evt
Size (bytes)517,383,36084,890,880
Size493.4 MB 81.0 MB
Events in quadrant A3,946,800546,631
Events in quadrant B3,926,775552,480
Events in quadrant C3,693,476526,222
Events in quadrant D3,682,033513,059

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01546413
B0155636
C01476018
D01484710

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61973906.293368%
B62002233.596774%
C61942564.133032%
D61981101.774766%

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 7517 6202 265 265 3.53% 4.27%
B 7517 6202 59 59 0.78% 0.95%
C 7517 6202 103 103 1.37% 1.66%
D 7517 6202 18 18 0.24% 0.29%

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 5 16 800041 4838.93 815 801 165.2
A 8 5 8366 45.8 815 801 165.2
A 0 226 7586 41.08 815 801 165.2
B 4 239 424092 2725.18 825 809 155.3
B 4 81 130295 833.66 825 809 155.3
B 11 51 79587 507.19 825 809 155.3
C 4 254 587712 3204.79 793 800 183.1
C 14 234 8560 42.37 793 800 183.1
C 13 61 5887 27.77 793 800 183.1
D 8 195 288811 1506.99 802 783 191.1
D 2 33 89253 462.88 802 783 191.1
D 1 20 69096 357.42 802 783 191.1

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