ASTROSAT CZTI

Data Quality Report

Orbit 24132

Creation date: 2024-06-27T19:02:28.963476
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/AS1A07_069T01_9000003570_24132cztM0_level2.evt modeM0/AS1A07_069T01_9000003570_24132cztM0_level2_quad_clean.evt
Size (bytes)542,508,48091,920,960
Size517.4 MB 87.7 MB
Events in quadrant A3,678,714600,219
Events in quadrant B4,683,362556,861
Events in quadrant C3,603,259572,774
Events in quadrant D3,987,715564,434

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149962
B0180562
C0148762
D0160212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70252383.387900%
B702571110.120996%
C70252713.857651%
D70252123.017794%

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 7026 0 0 0.00% 0.00%
B 7706 7026 452 452 5.87% 6.43%
C 7706 7026 9 9 0.12% 0.13%
D 7706 7026 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 6 16 122204 657.04 920 900 184.6
A 13 254 11746 58.75 920 900 184.6
A 3 137 8010 38.51 920 900 184.6
B 0 245 1228824 7420.55 869 849 165.5
B 12 111 20152 116.65 869 849 165.5
B 6 36 18304 105.48 869 849 165.5
C 14 238 139569 684.37 867 872 202.7
C 2 16 39002 188.14 867 872 202.7
C 0 239 18010 84.56 867 872 202.7
D 1 52 290164 1336.03 891 865 216.5
D 8 195 233493 1074.32 891 865 216.5
D 12 227 51556 234.1 891 865 216.5

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