ASTROSAT CZTI

Data Quality Report

Orbit 03373

Creation date: 2024-06-27T14:28:10.241750
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/AS1G05_112T01_9000000452_03373cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03373cztM0_level2_quad_clean.evt
Size (bytes)399,539,52078,929,280
Size381.0 MB 75.3 MB
Events in quadrant A2,831,394492,692
Events in quadrant B3,142,543499,698
Events in quadrant C2,873,212495,781
Events in quadrant D2,833,522471,740

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126722
B0134081
C0126691
D0128801

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6159140.227310%
B6159350.568274%
C6159130.211073%
D6159240.389674%

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 7434 6160 4 4 0.05% 0.06%
B 7434 6160 2 2 0.03% 0.03%
C 7434 6160 0 0 0.00% 0.00%
D 7434 6160 12 12 0.16% 0.19%

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 14 249 16399 105.68 723 708 148.5
A 13 248 14212 90.95 723 708 148.5
A 0 50 10272 64.41 723 708 148.5
B 15 204 206291 1440.37 740 723 142.7
B 14 167 42012 289.3 740 723 142.7
B 12 111 10207 66.45 740 723 142.7
C 9 54 16660 94.17 719 726 169.2
C 1 16 16249 91.74 719 726 169.2
C 1 192 8020 43.11 719 726 169.2
D 13 223 87722 507.96 706 687 171.3
D 13 239 34242 195.84 706 687 171.3
D 12 110 24432 138.58 706 687 171.3

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