ASTROSAT CZTI

Data Quality Report

Orbit 01263

Creation date: 2024-06-27T14:10:01.624457
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/AS1G04_011T02_9000000226_01263cztM0_level2.evt modeM0/AS1G04_011T02_9000000226_01263cztM0_level2_quad_clean.evt
Size (bytes)1,309,896,000111,816,000
Size1.2 GB 106.6 MB
Events in quadrant A9,109,281731,046
Events in quadrant B10,403,859723,650
Events in quadrant C8,955,128725,786
Events in quadrant D10,715,533692,738

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0322791
B0360840
C0318250
D0371390

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7371230.312034%
B7371971.315968%
C737160.081400%
D73714676.335640%

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 7371 7371 397 397 5.39% 5.39%
B 7370 7370 782 782 10.61% 10.61%
C 7370 7370 357 357 4.84% 4.84%
D 7370 7370 1205 1205 16.35% 16.35%

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 4 32 118578 208.69 2328 2342 557.0
A 10 2 18784 29.52 2328 2342 557.0
A 12 243 17302 26.86 2328 2342 557.0
B 8 4 729267 1283.94 2388 2393 566.1
B 5 191 197583 344.78 2388 2393 566.1
B 6 53 138173 239.84 2388 2393 566.1
C 15 241 337520 550.18 2181 2256 609.4
C 3 79 55398 87.21 2181 2256 609.4
C 3 111 34528 52.96 2181 2256 609.4
D 13 169 1503721 2292.84 2122 2200 654.9
D 10 84 549753 836.12 2122 2200 654.9
D 12 22 336328 510.22 2122 2200 654.9

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