ASTROSAT CZTI

Data Quality Report

Orbit 29185

Creation date: 2024-06-27T20:01:15.835028
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/AS1A10_048T07_9000004188_29185cztM0_level2.evt modeM0/AS1A10_048T07_9000004188_29185cztM0_level2_quad_clean.evt
Size (bytes)676,601,280102,435,840
Size645.3 MB 97.7 MB
Events in quadrant A3,486,350664,525
Events in quadrant B3,863,047680,621
Events in quadrant C8,100,886622,940
Events in quadrant D4,558,113636,708

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149282
B0161372
C0291332
D0183992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7147490.685602%
B71471642.294669%
C714776110.647824%
D71461021.427372%

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 7647 7148 0 0 0.00% 0.00%
B 7647 7147 15 15 0.20% 0.21%
C 7647 7148 338 338 4.42% 4.73%
D 7646 7147 41 41 0.54% 0.57%

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 13 254 13406 69.05 901 884 181.3
A 15 174 9853 49.46 901 884 181.3
A 3 137 9000 44.75 901 884 181.3
B 0 183 202882 1160.32 900 874 174.1
B 0 190 48215 271.92 900 874 174.1
B 5 255 43987 247.64 900 874 174.1
C 3 233 4622134 22990.72 854 861 201.0
C 14 238 133600 660.37 854 861 201.0
C 2 114 16572 78.16 854 861 201.0
D 1 52 633681 3000.55 873 849 210.9
D 8 195 476330 2254.48 873 849 210.9
D 13 153 78009 365.85 873 849 210.9

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