ASTROSAT CZTI

Data Quality Report

Orbit 04593

Creation date: 2024-06-27T14:44:20.646657
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/AS1G05_191T01_9000000572_04593cztM0_level2.evt modeM0/AS1G05_191T01_9000000572_04593cztM0_level2_quad_clean.evt
Size (bytes)530,340,48080,438,400
Size505.8 MB 76.7 MB
Events in quadrant A3,711,830491,184
Events in quadrant B4,050,295477,881
Events in quadrant C3,487,292477,627
Events in quadrant D4,294,219458,532

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159859
B01706831
C0157728
D01809618

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76291271.664700%
B76232092.741703%
C7629410.537423%
D76271792.346925%

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 7633 7633 0 0 0.00% 0.00%
B 7633 7633 69 69 0.90% 0.90%
C 7633 7633 0 0 0.00% 0.00%
D 7633 7633 120 120 1.57% 1.57%

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 13 14 93052 491.97 916 900 187.3
A 8 15 63049 331.79 916 900 187.3
A 13 11 24279 124.81 916 900 187.3
B 2 249 413784 2306.32 919 896 179.0
B 15 204 38146 208.07 919 896 179.0
B 4 80 23550 126.54 919 896 179.0
C 9 247 10276 45.37 884 889 206.9
C 14 48 10116 44.6 884 889 206.9
C 13 61 7344 31.2 884 889 206.9
D 10 15 289631 1360.88 873 849 212.2
D 7 67 212813 998.87 873 849 212.2
D 13 235 173954 815.75 873 849 212.2

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