ASTROSAT CZTI

Data Quality Report

Orbit 34112

Creation date: 2024-06-27T20:56:38.609085
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/AS1A11_097T08_9000004874_34112cztM0_level2.evt modeM0/AS1A11_097T08_9000004874_34112cztM0_level2_quad_clean.evt
Size (bytes)652,602,240121,354,560
Size622.4 MB 115.7 MB
Events in quadrant A3,638,717792,749
Events in quadrant B4,416,978801,318
Events in quadrant C5,220,557779,703
Events in quadrant D5,953,478752,482

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159853
B0182242
C0205902
D0230552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A790060.075949%
B79001151.455696%
C79002362.987342%
D79001301.645570%

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 10797 7902 0 0 0.00% 0.00%
B 10797 7902 57 57 0.53% 0.72%
C 10797 7902 159 159 1.47% 2.01%
D 10797 7902 95 95 0.88% 1.20%

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 10 83 22651 115.0 932 912 189.0
A 13 6 19042 95.91 932 912 189.0
A 13 254 14021 69.35 932 912 189.0
B 5 172 510153 2847.98 921 896 178.8
B 0 182 79241 438.14 921 896 178.8
B 0 190 77133 426.35 921 896 178.8
C 0 10 989108 4769.98 891 896 207.2
C 14 254 346187 1666.68 891 896 207.2
C 15 214 336597 1620.39 891 896 207.2
D 8 195 1601236 6613.57 889 873 242.0
D 2 249 272957 1124.4 889 873 242.0
D 7 223 232405 956.82 889 873 242.0

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