ASTROSAT CZTI

Data Quality Report

Orbit 24973

Creation date: 2024-06-27T19:12:09.279284
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/AS1T03_200T01_9000003654_24973cztM0_level2.evt modeM0/AS1T03_200T01_9000003654_24973cztM0_level2_quad_clean.evt
Size (bytes)178,427,52052,608,960
Size170.2 MB 50.2 MB
Events in quadrant A1,269,379354,752
Events in quadrant B1,345,335361,083
Events in quadrant C1,242,784339,683
Events in quadrant D1,348,348332,166

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A057650
B059140
C057640
D059590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A287840.138985%
B287910.034734%
C287940.138937%
D287900.000000%

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 2878 2878 0 0 0.00% 0.00%
B 2879 2879 1 1 0.03% 0.03%
C 2879 2879 0 0 0.00% 0.00%
D 2879 2879 0 0 0.00% 0.00%

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 6 16 13621 199.94 325 319 66.5
A 13 254 4424 61.7 325 319 66.5
A 3 137 2880 38.49 325 319 66.5
B 3 64 41467 649.67 321 313 63.3
B 10 246 10588 162.2 321 313 63.3
B 5 172 9126 139.12 321 313 63.3
C 14 238 48768 675.3 304 305 71.8
C 7 247 5932 78.41 304 305 71.8
C 0 207 2654 32.73 304 305 71.8
D 7 238 79833 1039.84 311 301 76.5
D 8 195 74826 974.38 311 301 76.5
D 2 234 11009 140.0 311 301 76.5

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