ASTROSAT CZTI

Data Quality Report

Orbit 28284

Creation date: 2024-06-27T19:50:02.754856
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_102T06_9000004078_28284cztM0_level2.evt modeM0/AS1A10_102T06_9000004078_28284cztM0_level2_quad_clean.evt
Size (bytes)539,743,680117,244,800
Size514.7 MB 111.8 MB
Events in quadrant A3,067,997801,558
Events in quadrant B3,593,609828,592
Events in quadrant C3,174,866795,699
Events in quadrant D6,099,635702,603

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129710
B0146660
C0133070
D0223220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6052330.545274%
B60521222.015863%
C6052781.288830%
D605197316.079987%

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 7432 6053 7 7 0.09% 0.12%
B 7432 6053 65 65 0.87% 1.07%
C 7432 6053 0 0 0.00% 0.00%
D 7431 6052 804 804 10.82% 13.28%

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 12 96 56576 364.99 776 762 152.9
A 4 2 15966 99.43 776 762 152.9
A 13 254 10362 62.78 776 762 152.9
B 10 245 487519 3378.28 780 764 144.1
B 4 200 34770 236.02 780 764 144.1
B 12 111 16800 111.3 780 764 144.1
C 14 238 125695 722.87 758 765 172.8
C 3 233 92447 530.49 758 765 172.8
C 13 61 5227 25.82 758 765 172.8
D 1 52 2518822 15699.67 689 672 160.4
D 8 195 780073 4859.26 689 672 160.4
D 12 250 79060 488.72 689 672 160.4

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