ASTROSAT CZTI

Data Quality Report

Orbit 05197

Creation date: 2024-06-27T14:52:31.334901
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_104T01_9000000656_05197cztM0_level2.evt modeM0/AS1G05_104T01_9000000656_05197cztM0_level2_quad_clean.evt
Size (bytes)436,613,760105,785,280
Size416.4 MB 100.9 MB
Events in quadrant A3,118,051694,284
Events in quadrant B3,018,447705,051
Events in quadrant C2,892,568705,435
Events in quadrant D3,767,971661,874

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134522
B0130051
C0127591
D0154511

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6269841.339927%
B6269681.084703%
C6269460.733769%
D62692153.429574%

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 7450 6270 9 9 0.12% 0.14%
B 7450 6270 4 4 0.05% 0.06%
C 7450 6270 0 0 0.00% 0.00%
D 7450 6270 126 126 1.69% 2.01%

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 4 2 202213 1337.5 746 732 150.6
A 0 50 30182 195.5 746 732 150.6
A 0 247 14437 90.98 746 732 150.6
B 15 54 58846 415.58 751 735 139.8
B 5 70 17160 117.46 751 735 139.8
B 4 80 14719 100.01 751 735 139.8
C 1 16 16273 92.11 736 740 168.6
C 13 61 5881 30.49 736 740 168.6
C 14 67 5811 30.07 736 740 168.6
D 2 63 184827 1040.25 726 705 177.0
D 1 31 176970 995.86 726 705 177.0
D 2 33 157004 883.06 726 705 177.0

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