ASTROSAT CZTI

Data Quality Report

Orbit 14417

Creation date: 2024-06-27T16:54:52.362614
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_201T03_9000002128_14417cztM0_level2.evt modeM0/AS1A04_201T03_9000002128_14417cztM0_level2_quad_clean.evt
Size (bytes)463,210,56062,660,160
Size441.8 MB 59.8 MB
Events in quadrant A3,260,310370,966
Events in quadrant B3,412,120375,319
Events in quadrant C3,697,921360,424
Events in quadrant D3,230,089350,560

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131872
B0137711
C0149051
D0135911

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6303410.650484%
B6303831.316833%
C6303310.491829%
D6303250.396637%

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 7674 6304 0 0 0.00% 0.00%
B 7674 6304 6 6 0.08% 0.10%
C 7674 6304 0 0 0.00% 0.00%
D 7674 6304 20 20 0.26% 0.32%

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 34071 198.96 832 813 167.2
A 12 189 25657 148.63 832 813 167.2
A 0 226 7570 40.42 832 813 167.2
B 0 189 54632 346.81 831 813 155.2
B 0 229 28723 179.85 831 813 155.2
B 0 190 20078 124.15 831 813 155.2
C 3 233 593190 3238.2 796 800 182.9
C 13 61 5712 26.85 796 800 182.9
C 14 234 1832 5.64 796 800 182.9
D 2 120 142104 737.92 789 770 191.5
D 5 51 39427 201.83 789 770 191.5
D 10 199 37465 191.59 789 770 191.5

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