ASTROSAT CZTI

Data Quality Report

Orbit 19263

Creation date: 2024-06-27T18:00:48.166409
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_088T02_9000002850_19263cztM0_level2.evt modeM0/AS1A05_088T02_9000002850_19263cztM0_level2_quad_clean.evt
Size (bytes)486,745,92070,038,720
Size464.2 MB 66.8 MB
Events in quadrant A3,476,722422,196
Events in quadrant B3,427,452429,640
Events in quadrant C3,464,267417,617
Events in quadrant D3,941,853408,234

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145812
B0143402
C0142862
D0159072

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6351751.180916%
B6351821.291135%
C63511251.968194%
D63511211.905212%

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 7541 6351 0 0 0.00% 0.00%
B 7541 6351 0 0 0.00% 0.00%
C 7541 6351 0 0 0.00% 0.00%
D 7541 6351 52 52 0.69% 0.82%

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 8 205 120515 695.56 867 852 172.0
A 3 1 13487 73.44 867 852 172.0
A 0 226 7647 39.5 867 852 172.0
B 12 111 19204 113.3 861 840 162.1
B 0 230 17557 103.14 861 840 162.1
B 11 111 17120 100.44 861 840 162.1
C 14 238 131233 675.65 834 843 193.0
C 3 233 81901 420.02 834 843 193.0
C 13 61 5942 26.42 834 843 193.0
D 10 66 328588 1604.48 846 822 204.3
D 1 52 306849 1498.06 846 822 204.3
D 13 104 60677 293.0 846 822 204.3

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