ASTROSAT CZTI

Data Quality Report

Orbit 14605

Creation date: 2024-06-27T16:57:23.939960
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/AS1G08_055T02_9000002148_14605cztM0_level2.evt modeM0/AS1G08_055T02_9000002148_14605cztM0_level2_quad_clean.evt
Size (bytes)623,658,240106,228,800
Size594.8 MB 101.3 MB
Events in quadrant A7,177,303677,241
Events in quadrant B3,220,910719,367
Events in quadrant C3,699,406709,081
Events in quadrant D4,377,985685,193

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255343
B0135172
C0152312
D0169682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61054136.764947%
B6105570.933661%
C6105530.868141%
D61051762.882883%

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 8791 6108 40 40 0.46% 0.65%
B 8791 6108 3 3 0.03% 0.05%
C 8791 6108 2 2 0.02% 0.03%
D 8791 6108 261 261 2.97% 4.27%

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 23 3637280 23434.15 778 764 155.2
A 0 226 221110 1419.94 778 764 155.2
A 1 162 144502 926.26 778 764 155.2
B 0 205 34052 223.29 799 782 149.0
B 12 111 17723 113.7 799 782 149.0
B 11 111 14910 94.82 799 782 149.0
C 3 233 631023 3495.1 787 793 180.3
C 13 61 5721 27.33 787 793 180.3
C 14 234 3131 12.97 787 793 180.3
D 12 110 1184728 6519.72 777 761 181.6
D 10 199 176974 970.35 777 761 181.6
D 2 234 25471 136.07 777 761 181.6

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