ASTROSAT CZTI

Data Quality Report

Orbit 02314

Creation date: 2024-06-27T14:16:07.309847
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/AS1T01_040T01_9000000354_02314cztM0_level2.evt modeM0/AS1T01_040T01_9000000354_02314cztM0_level2_quad_clean.evt
Size (bytes)546,874,56077,359,680
Size521.5 MB 73.8 MB
Events in quadrant A2,992,211487,313
Events in quadrant B6,051,376478,521
Events in quadrant C4,078,072470,331
Events in quadrant D3,013,070465,797

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131633
B0224932
C0163812
D0133362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6309941.489935%
B63095068.020288%
C63092293.629735%
D6309751.188778%

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 7518 6308 0 0 0.00% 0.00%
B 7518 6308 389 389 5.17% 6.17%
C 7518 6308 126 126 1.68% 2.00%
D 7518 6308 1 1 0.01% 0.02%

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 0 149 20543 129.52 771 756 152.8
A 0 226 10257 62.19 771 756 152.8
A 12 194 8633 51.56 771 756 152.8
B 0 85 3040996 21363.15 767 750 142.3
B 4 48 34926 240.15 767 750 142.3
B 8 3 13191 87.42 767 750 142.3
C 5 234 716728 4205.87 742 748 170.2
C 14 223 444099 2604.37 742 748 170.2
C 10 65 6751 35.26 742 748 170.2
D 8 195 122607 698.91 745 728 174.4
D 13 169 25852 144.07 745 728 174.4
D 2 31 15344 83.81 745 728 174.4

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