ASTROSAT CZTI

Data Quality Report

Orbit 08195

Creation date: 2024-06-27T15:29:18.941890
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/AS1A03_106T01_9000001130_08195cztM0_level2.evt modeM0/AS1A03_106T01_9000001130_08195cztM0_level2_quad_clean.evt
Size (bytes)438,137,280112,944,960
Size417.8 MB 107.7 MB
Events in quadrant A3,110,004742,123
Events in quadrant B3,254,114751,255
Events in quadrant C2,990,680730,989
Events in quadrant D3,435,984706,731

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143183
B0144902
C0142242
D0154612

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7026320.455451%
B7026380.540848%
C7026110.156561%
D7026650.925135%

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 7706 7027 0 0 0.00% 0.00%
B 7706 7027 1 1 0.01% 0.01%
C 7706 7027 0 0 0.00% 0.00%
D 7706 7027 31 31 0.40% 0.44%

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 13 14 13941 80.95 800 781 162.6
A 5 16 9770 55.29 800 781 162.6
A 0 226 7638 42.18 800 781 162.6
B 0 219 44629 286.04 803 784 153.3
B 0 214 39520 252.71 803 784 153.3
B 4 81 32012 203.73 803 784 153.3
C 13 61 5911 29.11 766 767 176.7
C 3 202 2053 7.28 766 767 176.7
C 12 4 2026 7.13 766 767 176.7
D 12 233 162563 862.47 766 740 187.6
D 1 52 151036 801.04 766 740 187.6
D 13 105 81872 432.41 766 740 187.6

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