ASTROSAT CZTI

Data Quality Report

Orbit 27563

Creation date: 2024-06-27T19:41:33.444827
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/AS1C05_019T04_9000003956_27563cztM0_level2.evt modeM0/AS1C05_019T04_9000003956_27563cztM0_level2_quad_clean.evt
Size (bytes)466,424,640106,994,880
Size444.8 MB 102.0 MB
Events in quadrant A3,511,910710,130
Events in quadrant B3,198,292723,859
Events in quadrant C3,008,608687,458
Events in quadrant D3,966,582666,886

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147470
B0137010
C0132410
D0163180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64701312.024730%
B64701121.731066%
C6471801.236285%
D64711882.905270%

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 7155 6470 17 17 0.24% 0.26%
B 7155 6471 9 9 0.13% 0.14%
C 7156 6472 1 1 0.01% 0.02%
D 7156 6472 124 124 1.73% 1.92%

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 15 174 527072 3401.98 769 753 154.7
A 6 16 11652 70.45 769 753 154.7
A 13 254 10233 61.28 769 753 154.7
B 10 245 95524 654.41 763 744 144.8
B 15 32 78845 539.25 763 744 144.8
B 3 64 33009 222.77 763 744 144.8
C 14 238 121150 702.57 733 736 171.4
C 10 22 9969 53.87 733 736 171.4
C 2 16 9078 48.67 733 736 171.4
D 1 52 974593 5539.8 737 717 175.8
D 2 250 76565 431.45 737 717 175.8
D 7 80 54038 303.31 737 717 175.8

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