ASTROSAT CZTI

Data Quality Report

Orbit 13357

Creation date: 2024-06-27T16:39:36.448551
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/AS1G08_082T01_9000001986_13357cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13357cztM0_level2_quad_clean.evt
Size (bytes)529,297,92074,473,920
Size504.8 MB 71.0 MB
Events in quadrant A3,409,453451,134
Events in quadrant B3,603,358460,201
Events in quadrant C3,446,916449,844
Events in quadrant D5,108,837419,515

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146293
B0151192
C0147482
D0198152

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6798901.323919%
B67981071.573992%
C6798811.191527%
D67982613.839365%

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 7934 6800 1 1 0.01% 0.01%
B 7934 6800 10 10 0.13% 0.15%
C 7934 6800 1 1 0.01% 0.01%
D 7934 6800 203 203 2.56% 2.99%

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 1 162 17496 94.44 871 852 176.2
A 8 15 13896 74.01 871 852 176.2
A 9 143 11154 58.45 871 852 176.2
B 3 64 73572 443.98 872 852 163.8
B 0 230 55282 332.31 872 852 163.8
B 4 142 20962 122.78 872 852 163.8
C 14 220 84254 432.88 842 849 192.7
C 3 233 76212 391.14 842 849 192.7
C 13 61 6147 27.5 842 849 192.7
D 1 52 982404 4928.48 830 804 199.2
D 13 249 487641 2444.34 830 804 199.2
D 8 195 189786 948.85 830 804 199.2

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