ASTROSAT CZTI

Data Quality Report

Orbit 28370

Creation date: 2024-06-27T19:51:02.738500
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/AS1A10_101T02_9000004084_28370cztM0_level2.evt modeM0/AS1A10_101T02_9000004084_28370cztM0_level2_quad_clean.evt
Size (bytes)549,224,64094,092,480
Size523.8 MB 89.7 MB
Events in quadrant A3,953,981613,149
Events in quadrant B3,797,398651,551
Events in quadrant C3,208,861601,959
Events in quadrant D5,261,161557,820

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154610
B0151480
C0131290
D0198220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60833495.737301%
B6083490.805524%
C6083510.838402%
D60822433.995396%

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 7438 6084 299 299 4.02% 4.91%
B 7438 6084 2 2 0.03% 0.03%
C 7438 6084 0 0 0.00% 0.00%
D 7437 6083 233 233 3.13% 3.83%

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 15 174 819481 5087.64 810 798 160.9
A 13 254 11555 66.85 810 798 160.9
A 12 96 9133 51.8 810 798 160.9
B 10 245 503790 3248.26 824 806 154.8
B 10 246 38757 245.09 824 806 154.8
B 0 230 23347 145.57 824 806 154.8
C 14 238 128619 699.84 785 790 182.7
C 0 10 10162 51.31 785 790 182.7
C 1 16 5444 25.48 785 790 182.7
D 8 195 1213305 6674.79 772 754 181.7
D 1 52 626114 3442.45 772 754 181.7
D 2 250 172911 947.68 772 754 181.7

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