ASTROSAT CZTI

Data Quality Report

Orbit 18110

Creation date: 2024-06-27T17:45:04.628487
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_019T01_9000002688_18110cztM0_level2.evt modeM0/AS1A05_019T01_9000002688_18110cztM0_level2_quad_clean.evt
Size (bytes)529,015,68092,646,720
Size504.5 MB 88.4 MB
Events in quadrant A3,211,857606,976
Events in quadrant B3,852,419603,782
Events in quadrant C3,212,779574,658
Events in quadrant D5,285,110548,424

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139571
B0157431
C0138701
D0201911

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6765510.753880%
B67652403.547672%
C6766771.138043%
D67654136.104952%

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 7580 6766 0 0 0.00% 0.00%
B 7580 6766 121 121 1.60% 1.79%
C 7581 6767 0 0 0.00% 0.00%
D 7580 6766 324 324 4.27% 4.79%

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 17704 100.29 829 814 168.4
A 0 226 7291 38.46 829 814 168.4
A 3 137 6170 31.8 829 814 168.4
B 6 36 505043 3235.07 812 792 155.9
B 7 220 46849 295.48 812 792 155.9
B 4 171 35288 221.31 812 792 155.9
C 14 238 121710 648.88 789 794 186.3
C 5 218 7535 36.17 789 794 186.3
C 13 61 5484 25.17 789 794 186.3
D 7 238 868255 4562.67 788 768 190.1
D 10 70 590826 3103.49 788 768 190.1
D 11 176 398326 2091.01 788 768 190.1

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