ASTROSAT CZTI

Data Quality Report

Orbit 09538

Creation date: 2024-06-27T15:47:25.813988
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/AS1G07_049T01_9000001352_09538cztM0_level2.evt modeM0/AS1G07_049T01_9000001352_09538cztM0_level2_quad_clean.evt
Size (bytes)482,184,000129,381,120
Size459.8 MB 123.4 MB
Events in quadrant A3,351,578889,852
Events in quadrant B3,256,477893,608
Events in quadrant C3,627,163864,894
Events in quadrant D3,954,081844,762

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139082
B0136181
C0148721
D0156941

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60921191.953381%
B60921211.986211%
C60922343.841103%
D60923195.236376%

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 7392 6093 0 0 0.00% 0.00%
B 7392 6093 5 5 0.07% 0.08%
C 7392 6093 75 75 1.01% 1.23%
D 7392 6093 114 114 1.54% 1.87%

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 158470 1021.76 782 767 154.3
A 1 178 61914 396.17 782 767 154.3
A 1 161 60204 385.09 782 767 154.3
B 0 214 173975 1216.93 774 759 142.3
B 0 219 28799 196.99 774 759 142.3
B 0 246 20506 138.73 774 759 142.3
C 4 254 743306 4466.82 737 742 166.2
C 13 61 5494 28.59 737 742 166.2
C 14 67 3517 16.69 737 742 166.2
D 1 52 781910 4028.14 739 722 193.9
D 12 233 161266 827.83 739 722 193.9
D 8 195 102160 523.06 739 722 193.9

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