ASTROSAT CZTI

Data Quality Report

Orbit 30120

Creation date: 2024-06-27T20:11:09.019945
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_097T01_9000004334_30120cztM0_level2.evt modeM0/AS1A10_097T01_9000004334_30120cztM0_level2_quad_clean.evt
Size (bytes)538,868,160116,821,440
Size513.9 MB 111.4 MB
Events in quadrant A3,169,383782,070
Events in quadrant B5,081,314792,278
Events in quadrant C3,833,217765,135
Events in quadrant D3,802,755752,573

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134482
B0195122
C0156662
D0155732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6394290.453550%
B6394610.954019%
C63941231.923678%
D6394731.141695%

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 7584 6395 5 5 0.07% 0.08%
B 7584 6395 5 5 0.07% 0.08%
C 7584 6395 1 1 0.01% 0.02%
D 7584 6395 14 14 0.18% 0.22%

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 8 192 27875 168.04 810 794 161.2
A 1 113 17130 101.36 810 794 161.2
A 13 254 11645 67.33 810 794 161.2
B 6 159 1864759 12168.52 809 789 153.2
B 0 190 27412 173.8 809 789 153.2
B 12 111 18283 114.21 809 789 153.2
C 3 233 522985 2820.36 795 801 185.1
C 14 238 147443 792.03 795 801 185.1
C 14 254 27553 144.49 795 801 185.1
D 1 52 547771 2682.3 792 777 203.9
D 2 250 71241 345.53 792 777 203.9
D 8 195 69475 336.87 792 777 203.9

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