ASTROSAT CZTI

Data Quality Report

Orbit 20380

Creation date: 2024-06-27T18:14:38.653717
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_205T01_9000003012_20380cztM0_level2.evt modeM0/AS1A05_205T01_9000003012_20380cztM0_level2_quad_clean.evt
Size (bytes)441,740,16096,546,240
Size421.3 MB 92.1 MB
Events in quadrant A3,084,327629,421
Events in quadrant B3,304,909651,911
Events in quadrant C3,163,413623,416
Events in quadrant D3,409,257591,379

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128782
B0133882
C0129302
D0141212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6128190.310052%
B6128861.403394%
C6128410.669060%
D6127410.669169%

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 7518 6129 0 0 0.00% 0.00%
B 7518 6129 9 9 0.12% 0.15%
C 7518 6129 0 0 0.00% 0.00%
D 7517 6128 20 20 0.27% 0.33%

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 9 143 9139 52.21 797 784 160.0
A 0 226 6991 38.79 797 784 160.0
A 13 254 6682 36.86 797 784 160.0
B 7 220 83849 555.06 806 789 149.6
B 12 111 17564 112.1 806 789 149.6
B 0 198 16813 107.08 806 789 149.6
C 14 238 124221 687.28 777 786 179.6
C 1 16 5566 26.61 777 786 179.6
C 13 61 5488 26.18 777 786 179.6
D 1 52 290818 1544.7 771 750 187.8
D 13 153 118592 627.54 771 750 187.8
D 2 234 31237 162.35 771 750 187.8

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