ASTROSAT CZTI

Data Quality Report

Orbit 28314

Creation date: 2024-06-27T19:50:23.248974
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_102T10_9000004080_28314cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28314cztM0_level2_quad_clean.evt
Size (bytes)517,806,720108,889,920
Size493.8 MB 103.8 MB
Events in quadrant A3,130,567722,856
Events in quadrant B3,650,792747,052
Events in quadrant C3,210,301718,671
Events in quadrant D5,257,094663,799

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133690
B0148280
C0135460
D0199600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6377470.737024%
B63771241.944488%
C63771061.662224%
D63774346.805708%

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 9007 6379 3 3 0.03% 0.05%
B 9007 6379 42 42 0.47% 0.66%
C 9007 6379 0 0 0.00% 0.00%
D 9007 6379 297 297 3.30% 4.66%

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 8 192 11588 67.87 806 792 159.1
A 13 254 11108 64.85 806 792 159.1
A 3 137 7447 41.84 806 792 159.1
B 10 245 353470 2330.18 812 793 151.4
B 10 246 101730 666.9 812 793 151.4
B 12 111 18283 115.56 812 793 151.4
C 14 238 130795 717.41 786 792 181.2
C 3 233 16223 85.15 786 792 181.2
C 13 61 5658 26.85 786 792 181.2
D 1 52 1678586 9407.87 756 735 178.3
D 2 250 216714 1211.01 756 735 178.3
D 13 104 145614 812.35 756 735 178.3

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