ASTROSAT CZTI

Data Quality Report

Orbit 25205

Creation date: 2024-06-27T19:15:02.584114
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/AS1A07_027T01_9000003690_25205cztM0_level2.evt modeM0/AS1A07_027T01_9000003690_25205cztM0_level2_quad_clean.evt
Size (bytes)517,158,72094,887,360
Size493.2 MB 90.5 MB
Events in quadrant A3,268,691614,195
Events in quadrant B3,588,890615,311
Events in quadrant C3,417,994586,957
Events in quadrant D4,909,744567,487

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142870
B0151420
C0146150
D0192690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7030300.426743%
B7031841.194709%
C7031941.336936%
D70302834.025605%

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 7350 7031 0 0 0.00% 0.00%
B 7351 7032 15 15 0.20% 0.21%
C 7351 7032 0 0 0.00% 0.00%
D 7350 7031 258 258 3.51% 3.67%

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 13 254 11362 62.1 846 825 169.7
A 3 137 7957 42.03 846 825 169.7
A 0 226 7189 37.5 846 825 169.7
B 5 235 267609 1655.31 839 817 161.2
B 12 111 19934 118.61 839 817 161.2
B 11 111 18335 108.69 839 817 161.2
C 14 238 129898 679.43 807 814 190.0
C 7 247 105459 550.8 807 814 190.0
C 3 233 29125 149.01 807 814 190.0
D 8 195 964471 4848.18 813 788 198.8
D 2 244 678005 3407.0 813 788 198.8
D 12 235 105443 526.51 813 788 198.8

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