ASTROSAT CZTI

Data Quality Report

Orbit 08308

Creation date: 2024-06-27T15:31:06.967480
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/AS1G07_080T03_9000001154_08308cztM0_level2.evt modeM0/AS1G07_080T03_9000001154_08308cztM0_level2_quad_clean.evt
Size (bytes)475,269,120100,848,960
Size453.3 MB 96.2 MB
Events in quadrant A3,793,474665,423
Events in quadrant B3,212,032676,043
Events in quadrant C3,002,118649,982
Events in quadrant D3,959,560624,628

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152263
B0133372
C0129492
D0157502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62763255.178458%
B62761111.768642%
C6276701.115360%
D62762093.330147%

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 7556 6276 160 160 2.12% 2.55%
B 7556 6276 4 4 0.05% 0.06%
C 7556 6276 0 0 0.00% 0.00%
D 7556 6277 136 136 1.80% 2.17%

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 0 23 608665 3823.44 799 782 159.0
A 0 226 49432 305.99 799 782 159.0
A 15 234 33070 203.08 799 782 159.0
B 0 214 57416 377.42 803 786 150.0
B 0 229 18555 118.43 803 786 150.0
B 12 111 15345 97.03 803 786 150.0
C 13 61 5826 28.89 768 771 175.0
C 9 54 5040 24.4 768 771 175.0
C 3 202 1885 6.37 768 771 175.0
D 6 225 573718 2791.86 769 751 205.2
D 2 14 163650 793.75 769 751 205.2
D 13 105 146296 709.19 769 751 205.2

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