ASTROSAT CZTI

Data Quality Report

Orbit 13678

Creation date: 2024-06-27T16:44:25.119109
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_070T01_9000002028_13678cztM0_level2.evt modeM0/AS1G08_070T01_9000002028_13678cztM0_level2_quad_clean.evt
Size (bytes)502,623,360104,313,600
Size479.3 MB 99.5 MB
Events in quadrant A3,344,380690,358
Events in quadrant B3,718,608732,912
Events in quadrant C3,467,657666,226
Events in quadrant D4,260,392626,331

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135203
B0147672
C0139422
D0166312

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6353560.881473%
B63531081.699984%
C6353450.708327%
D63531001.574059%

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 7684 6355 0 0 0.00% 0.00%
B 7684 6355 13 13 0.17% 0.20%
C 7684 6355 0 0 0.00% 0.00%
D 7684 6355 65 65 0.85% 1.02%

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 1 162 11005 59.35 865 852 171.1
A 0 226 7652 39.75 865 852 171.1
A 12 194 6496 32.99 865 852 171.1
B 0 219 169367 1042.06 868 855 161.7
B 3 64 74343 454.44 868 855 161.7
B 0 214 68286 416.99 868 855 161.7
C 3 233 206538 1070.59 836 844 192.1
C 13 61 5990 26.78 836 844 192.1
C 14 234 2290 7.53 836 844 192.1
D 5 222 582393 2917.8 833 812 199.3
D 8 195 175741 877.62 833 812 199.3
D 13 122 114245 569.09 833 812 199.3

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