ASTROSAT CZTI

Data Quality Report

Orbit 25429

Creation date: 2024-06-27T19:17:32.755599
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/AS1A09_047T01_9000003714_25429cztM0_level2.evt modeM0/AS1A09_047T01_9000003714_25429cztM0_level2_quad_clean.evt
Size (bytes)542,560,32069,416,640
Size517.4 MB 66.2 MB
Events in quadrant A3,382,451432,932
Events in quadrant B3,332,977436,900
Events in quadrant C3,331,846419,351
Events in quadrant D5,943,745359,158

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139630
B0137280
C0138540
D0221180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6497150.230876%
B6496350.538793%
C6496761.169951%
D649670710.883621%

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 7622 6498 0 0 0.00% 0.00%
B 7621 6496 0 0 0.00% 0.00%
C 7621 6496 0 0 0.00% 0.00%
D 7621 6497 653 653 8.57% 10.05%

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 133337 791.33 841 825 167.5
A 13 254 9194 49.98 841 825 167.5
A 3 137 7338 38.89 841 825 167.5
B 0 229 50631 319.71 833 814 155.8
B 12 111 19176 117.84 833 814 155.8
B 11 111 17255 105.51 833 814 155.8
C 14 238 131665 708.22 804 811 184.8
C 7 247 64571 345.09 804 811 184.8
C 13 61 5613 25.99 804 811 184.8
D 1 52 1291954 6961.92 768 745 185.5
D 7 238 881016 4746.23 768 745 185.5
D 8 195 730626 3935.36 768 745 185.5

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