ASTROSAT CZTI

Data Quality Report

Orbit 05125

Creation date: 2024-06-27T14:51:39.142150
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_230T05_9000000648_05125cztM0_level2.evt modeM0/AS1G05_230T05_9000000648_05125cztM0_level2_quad_clean.evt
Size (bytes)433,471,68074,897,280
Size413.4 MB 71.4 MB
Events in quadrant A2,927,410459,175
Events in quadrant B3,888,204464,219
Events in quadrant C2,880,946468,477
Events in quadrant D3,008,006441,695

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01288010
B0156385
C0128241
D0133233

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62201151.848875%
B62222774.451945%
C6224991.590617%
D62231252.008677%

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 7299 6225 0 0 0.00% 0.00%
B 7299 6225 136 136 1.86% 2.18%
C 7299 6225 0 0 0.00% 0.00%
D 7299 6225 29 29 0.40% 0.47%

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 37889 244.38 745 728 152.1
A 5 112 17392 109.59 745 728 152.1
A 12 194 7553 44.88 745 728 152.1
B 4 48 648237 4559.86 742 723 142.0
B 15 204 255125 1791.52 742 723 142.0
B 8 3 87627 611.99 742 723 142.0
C 1 16 15024 83.75 733 736 170.6
C 13 61 5945 30.53 733 736 170.6
C 14 225 3556 16.53 733 736 170.6
D 2 33 182421 1002.79 736 712 181.2
D 2 14 24802 132.94 736 712 181.2
D 12 110 12635 65.8 736 712 181.2

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