ASTROSAT CZTI

Data Quality Report

Orbit 06589

Creation date: 2024-06-27T15:09:07.860916
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/AS1G06_169T01_9000000886_06589cztM0_level2.evt modeM0/AS1G06_169T01_9000000886_06589cztM0_level2_quad_clean.evt
Size (bytes)559,877,76094,429,440
Size533.9 MB 90.1 MB
Events in quadrant A3,475,446599,575
Events in quadrant B3,862,475604,816
Events in quadrant C3,371,555595,422
Events in quadrant D5,742,207542,419

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154183
B0163522
C0153522
D0220632

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74272433.271846%
B74272703.635384%
C74271912.571698%
D742785111.458193%

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 7722 7428 2 2 0.03% 0.03%
B 7722 7428 37 37 0.48% 0.50%
C 7722 7428 2 2 0.03% 0.03%
D 7722 7428 592 592 7.67% 7.97%

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 15 23336 124.42 881 861 180.6
A 14 111 21809 115.97 881 861 180.6
A 3 1 18495 97.62 881 861 180.6
B 4 81 105971 619.95 880 858 169.6
B 0 219 83271 486.06 880 858 169.6
B 4 80 78216 456.25 880 858 169.6
C 9 16 31198 153.8 851 852 197.3
C 13 61 6671 29.49 851 852 197.3
C 1 16 6343 27.83 851 852 197.3
D 2 33 1872510 9203.67 829 802 203.4
D 2 63 207327 1015.54 829 802 203.4
D 2 136 200782 983.35 829 802 203.4

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