ASTROSAT CZTI

Data Quality Report

Orbit 05240

Creation date: 2024-06-27T14:52:56.968355
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/AS1C01_015T01_9000000668_05240cztM0_level2.evt modeM0/AS1C01_015T01_9000000668_05240cztM0_level2_quad_clean.evt
Size (bytes)521,619,84076,478,400
Size497.5 MB 72.9 MB
Events in quadrant A3,120,299475,953
Events in quadrant B3,178,007482,242
Events in quadrant C3,080,322467,423
Events in quadrant D5,967,239426,454

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136453
B0136712
C0136522
D0221292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6645500.752445%
B6645620.933032%
C6645280.421369%
D664589213.423627%

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 7870 6646 0 0 0.00% 0.00%
B 7870 6646 0 0 0.00% 0.00%
C 7870 6646 0 0 0.00% 0.00%
D 7870 6645 669 669 8.50% 10.07%

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 12 194 7864 42.98 810 792 164.5
A 0 226 7785 42.5 810 792 164.5
A 14 111 3055 13.75 810 792 164.5
B 15 204 35921 224.21 811 795 156.7
B 12 111 15260 92.33 811 795 156.7
B 11 111 11801 70.25 811 795 156.7
C 1 16 53603 295.31 773 778 178.9
C 13 61 6271 30.71 773 778 178.9
C 7 159 4127 18.72 773 778 178.9
D 11 145 2726661 15112.49 732 709 180.4
D 8 195 263022 1454.24 732 709 180.4
D 10 15 102995 567.07 732 709 180.4

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