ASTROSAT CZTI

Data Quality Report

Orbit 05472

Creation date: 2024-06-27T14:55:36.822980
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/AS1T01_138T01_9000000698_05472cztM0_level2.evt modeM0/AS1T01_138T01_9000000698_05472cztM0_level2_quad_clean.evt
Size (bytes)488,148,48073,275,840
Size465.5 MB 69.9 MB
Events in quadrant A2,869,473459,061
Events in quadrant B4,482,647439,922
Events in quadrant C3,079,341460,909
Events in quadrant D3,935,260429,897

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127585
B0173092
C0130572
D0158172

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6144220.358073%
B61454377.111473%
C614570.113914%
D61451662.701383%

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 7420 6146 1 1 0.01% 0.02%
B 7420 6146 346 346 4.66% 5.63%
C 7420 6146 0 0 0.00% 0.00%
D 7420 6146 163 163 2.20% 2.65%

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 0 50 52589 350.46 722 706 148.0
A 0 247 10474 65.98 722 706 148.0
A 13 6 9394 58.68 722 706 148.0
B 10 16 1249848 9341.11 707 692 133.7
B 15 204 350462 2615.55 707 692 133.7
B 11 51 49938 368.25 707 692 133.7
C 9 247 345540 2166.1 693 698 159.2
C 14 67 14671 87.77 693 698 159.2
C 13 61 5724 31.57 693 698 159.2
D 2 33 841107 4956.96 683 660 169.5
D 8 195 154017 904.5 683 660 169.5
D 5 81 68269 398.76 683 660 169.5

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