ASTROSAT CZTI

Data Quality Report

Orbit 42073

Creation date: 2024-06-27T22:36:31.078071
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/AS1A12_037T03_9000005738_42073cztM0_level2.fits modeM0/AS1A12_037T03_9000005738_42073cztM0_level2_quad_clean.evt
Size (bytes)368,697,60094,383,360
Size351.6 MB 90.0 MB
Events in quadrant A3,850,993629,311
Events in quadrant B2,607,719651,030
Events in quadrant C2,716,351617,701
Events in quadrant D4,021,832554,541

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149382
B0118792
C0116752
D0159022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5796821.414769%
B5797240.414007%
C579730.051751%
D57972063.553562%

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 8870 5798 97 97 1.09% 1.67%
B 8871 5799 7 7 0.08% 0.12%
C 8871 5799 0 0 0.00% 0.00%
D 8871 5799 163 163 1.84% 2.81%

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 599482 4540.24 640 625 131.9
A 9 240 481690 3647.2 640 625 131.9
A 15 222 264540 2000.87 640 625 131.9
B 5 255 93103 731.46 638 620 126.4
B 12 111 15805 120.1 638 620 126.4
B 11 111 14588 110.47 638 620 126.4
C 15 214 244599 1666.74 625 631 146.4
C 12 249 17478 115.1 625 631 146.4
C 1 241 9070 57.65 625 631 146.4
D 12 6 452505 2976.56 617 599 151.8
D 1 47 379351 2494.72 617 599 151.8
D 1 52 291754 1917.75 617 599 151.8

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