ASTROSAT CZTI

Data Quality Report

Orbit 47430

Creation date: 2024-07-05T23:26:41.466197
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/AS1A13_053T01_9000006326_47430cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47430cztM0_level2_quad_clean.evt
Size (bytes)484,724,160104,688,000
Size462.3 MB 99.8 MB
Events in quadrant A6,606,162699,340
Events in quadrant B3,293,361731,598
Events in quadrant C3,214,914703,053
Events in quadrant D4,347,161602,494

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236431
B0140941
C0137811
D0171421

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62013505.644251%
B62021512.434698%
C6202681.096421%
D62025168.319897%

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 7370 6201 76 76 1.03% 1.23%
B 7372 6203 49 49 0.66% 0.79%
C 7372 6203 17 17 0.23% 0.27%
D 7372 6203 452 452 6.13% 7.29%

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 10 83 3598077 24607.46 708 693 146.2
A 9 191 271230 1850.57 708 693 146.2
A 3 137 8081 50.54 708 693 146.2
B 5 32 218432 1579.23 712 690 137.9
B 0 198 103010 742.1 712 690 137.9
B 0 200 47852 342.06 712 690 137.9
C 0 207 405249 2499.96 699 702 161.8
C 12 2 79906 489.45 699 702 161.8
C 13 61 4854 25.66 699 702 161.8
D 12 233 1044514 6123.93 678 657 170.5
D 2 120 243915 1427.11 678 657 170.5
D 11 224 118645 692.19 678 657 170.5

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