ASTROSAT CZTI

Data Quality Report

Orbit 17309

Creation date: 2024-06-27T17:34:48.940930
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/AS1A05_010T02_9000002556_17309cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17309cztM0_level2_quad_clean.evt
Size (bytes)508,682,88094,662,720
Size485.1 MB 90.3 MB
Events in quadrant A3,380,287626,556
Events in quadrant B3,235,967633,550
Events in quadrant C3,171,002591,392
Events in quadrant D5,186,379570,899

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141531
B0138011
C0136781
D0197751

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6364871.367065%
B6365851.335428%
C63651071.681068%
D63643856.049654%

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 7544 6364 0 0 0.00% 0.00%
B 7545 6365 1 1 0.01% 0.02%
C 7545 6365 0 0 0.00% 0.00%
D 7544 6364 368 368 4.88% 5.78%

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 0 23 164942 996.42 831 817 164.7
A 0 226 16847 97.32 831 817 164.7
A 4 2 11914 67.37 831 817 164.7
B 12 111 18692 114.38 825 806 156.4
B 11 111 16220 98.57 825 806 156.4
B 14 111 14280 86.17 825 806 156.4
C 14 238 120820 661.59 781 788 181.4
C 13 61 5564 26.32 781 788 181.4
C 3 233 5526 26.11 781 788 181.4
D 5 222 1115837 5873.18 785 763 189.9
D 11 176 967298 5090.81 785 763 189.9
D 2 152 63648 331.22 785 763 189.9

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