ASTROSAT CZTI

Data Quality Report

Orbit 10115

Creation date: 2024-06-27T15:55:09.557664
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_065T01_9000001454_10115cztM0_level2.evt modeM0/AS1G07_065T01_9000001454_10115cztM0_level2_quad_clean.evt
Size (bytes)2,606,826,240440,449,920
Size2.4 GB 420.0 MB
Events in quadrant A17,279,7652,822,039
Events in quadrant B17,476,6692,866,315
Events in quadrant C15,947,2412,792,855
Events in quadrant D25,894,0212,465,481

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07447614
B07405614
C07124618
D09878024

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0561
B0560
C0560
D0560

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07120
B07120
C07120
D07120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A348313340.958916%
B348304531.300603%
C348282240.643161%
D3482729658.513510%

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 40463 34835 0 0 0.00% 0.00%
B 40463 34834 53 53 0.13% 0.15%
C 40463 34837 0 0 0.00% 0.00%
D 40463 34835 2689 2689 6.65% 7.72%

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 8 15 1039939 1215.36 4215 4133 852.3
A 0 226 39012 40.93 4215 4133 852.3
A 12 194 34780 35.96 4215 4133 852.3
B 0 214 460196 569.52 4223 4126 800.8
B 4 239 188289 229.97 4223 4126 800.8
B 4 81 107782 129.44 4223 4126 800.8
C 14 67 65359 65.52 4062 4081 935.2
C 13 61 30516 28.27 4062 4081 935.2
C 8 128 17175 14.0 4062 4081 935.2
D 1 52 8021306 8074.74 3846 3764 992.9
D 8 195 1763970 1772.76 3846 3764 992.9
D 2 16 330237 328.8 3846 3764 992.9

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