ASTROSAT CZTI

Data Quality Report

Orbit 12937

Creation date: 2024-06-27T16:34:07.757781
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/AS1A04_115T02_9000001900_12937cztM0_level2.evt modeM0/AS1A04_115T02_9000001900_12937cztM0_level2_quad_clean.evt
Size (bytes)527,451,84090,391,680
Size503.0 MB 86.2 MB
Events in quadrant A3,330,946581,502
Events in quadrant B4,097,609574,477
Events in quadrant C3,014,249583,259
Events in quadrant D5,092,009546,602

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137932
B0162401
C0131351
D0193701

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6467380.587599%
B64673094.778104%
C6467140.216484%
D646769110.685016%

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 7638 6469 5 5 0.07% 0.08%
B 7638 6469 166 166 2.17% 2.57%
C 7638 6469 0 0 0.00% 0.00%
D 7638 6469 625 625 8.18% 9.66%

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 88212 542.97 802 786 161.0
A 1 178 41697 254.08 802 786 161.0
A 1 161 36026 218.86 802 786 161.0
B 4 239 660811 4467.05 779 760 147.8
B 3 64 254634 1718.15 779 760 147.8
B 0 182 74064 496.1 779 760 147.8
C 13 61 5481 26.36 772 777 178.5
C 8 222 2778 11.21 772 777 178.5
C 4 112 2181 7.87 772 777 178.5
D 1 52 2202747 12465.97 733 714 176.6
D 2 14 80784 453.29 733 714 176.6
D 8 195 24320 133.64 733 714 176.6

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