ASTROSAT CZTI

Data Quality Report

Orbit 17107

Creation date: 2024-06-27T17:32:12.080365
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_004T03_9000002538_17107cztM0_level2.evt modeM0/AS1A05_004T03_9000002538_17107cztM0_level2_quad_clean.evt
Size (bytes)452,312,64095,198,400
Size431.4 MB 90.8 MB
Events in quadrant A2,983,254623,659
Events in quadrant B3,217,674641,281
Events in quadrant C3,203,075609,438
Events in quadrant D3,873,930576,504

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128952
B0135762
C0132923
D0158182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6188130.210084%
B6188350.565611%
C6187520.840472%
D61871762.844674%

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 7488 6189 0 0 0.00% 0.00%
B 7488 6189 6 6 0.08% 0.10%
C 7487 6188 0 0 0.00% 0.00%
D 7487 6188 149 149 1.99% 2.41%

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 4 2 11862 71.78 772 757 154.7
A 0 226 6759 38.79 772 757 154.7
A 12 194 5792 32.54 772 757 154.7
B 0 189 59886 407.37 779 759 145.1
B 0 229 39133 264.39 779 759 145.1
B 0 197 30733 206.51 779 759 145.1
C 3 233 137674 782.44 755 762 175.0
C 14 238 116444 661.11 755 762 175.0
C 13 61 5380 26.39 755 762 175.0
D 5 222 816555 4560.71 746 728 178.9
D 10 70 180419 1004.53 746 728 178.9
D 1 52 32973 180.26 746 728 178.9

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