ASTROSAT CZTI

Data Quality Report

Orbit 27149

Creation date: 2024-06-27T19:37:21.067794
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_247T01_9000003914_27149cztM0_level2.evt modeM0/AS1T03_247T01_9000003914_27149cztM0_level2_quad_clean.evt
Size (bytes)47,309,76012,231,360
Size45.1 MB 11.7 MB
Events in quadrant A298,00581,156
Events in quadrant B310,19981,930
Events in quadrant C305,81278,927
Events in quadrant D472,89776,557

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012800
B012840
C012650
D018120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62410.160256%
B62520.320000%
C62581.280000%
D625254.000000%

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 624 624 0 0 0.00% 0.00%
B 625 625 0 0 0.00% 0.00%
C 625 625 0 0 0.00% 0.00%
D 625 625 16 16 2.56% 2.56%

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 0 13 8304 489.85 73 72 16.8
A 7 192 3422 199.35 73 72 16.8
A 13 254 1099 61.11 73 72 16.8
B 3 112 16703 989.95 74 72 16.8
B 12 111 1634 92.98 74 72 16.8
B 11 111 1477 83.63 74 72 16.8
C 14 238 12008 611.12 74 74 19.5
C 2 16 3066 153.22 74 74 19.5
C 15 208 814 37.89 74 74 19.5
D 1 52 103850 5272.72 73 70 19.7
D 7 38 60993 3095.3 73 70 19.7
D 12 233 13828 699.0 73 70 19.7

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