ASTROSAT CZTI

Data Quality Report

Orbit 14097

Creation date: 2024-06-27T16:50:19.047282
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_022T01_9000002078_14097cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14097cztM0_level2_quad_clean.evt
Size (bytes)513,273,60075,931,200
Size489.5 MB 72.4 MB
Events in quadrant A3,519,023482,729
Events in quadrant B4,427,309467,931
Events in quadrant C3,511,410456,626
Events in quadrant D3,647,719440,313

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145763
B0176332
C0144842
D0148622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64711181.823520%
B64712453.786123%
C6471751.159017%
D64711171.808067%

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 7777 6473 5 5 0.06% 0.08%
B 7777 6473 73 73 0.94% 1.13%
C 7777 6473 1 1 0.01% 0.02%
D 7777 6473 23 23 0.30% 0.36%

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 15 222 58595 326.32 890 874 176.9
A 12 189 21321 115.6 890 874 176.9
A 9 143 16180 86.53 890 874 176.9
B 10 16 782754 4858.31 875 857 160.9
B 0 189 85651 526.87 875 857 160.9
B 0 219 38243 232.3 875 857 160.9
C 3 233 186694 968.1 845 850 192.0
C 10 22 28423 143.63 845 850 192.0
C 13 61 6142 27.57 845 850 192.0
D 8 195 121226 601.2 843 820 200.3
D 1 52 107394 532.14 843 820 200.3
D 10 157 82681 408.74 843 820 200.3

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