ASTROSAT CZTI

Data Quality Report

Orbit 25543

Creation date: 2024-06-27T19:18:50.779385
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/AS1A09_008T05_9000003724_25543cztM0_level2.evt modeM0/AS1A09_008T05_9000003724_25543cztM0_level2_quad_clean.evt
Size (bytes)510,641,28092,865,600
Size487.0 MB 88.6 MB
Events in quadrant A3,174,281608,411
Events in quadrant B3,239,155616,382
Events in quadrant C3,555,710566,572
Events in quadrant D5,046,616559,282

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136640
B0137970
C0149530
D0197790

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6621380.573931%
B6621470.709863%
C66211912.884761%
D66211532.310829%

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 7611 6622 0 0 0.00% 0.00%
B 7611 6622 0 0 0.00% 0.00%
C 7611 6622 72 72 0.95% 1.09%
D 7611 6622 89 89 1.17% 1.34%

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 13 254 10928 61.03 823 806 165.8
A 3 137 7794 42.14 823 806 165.8
A 0 226 7043 37.61 823 806 165.8
B 0 190 28663 177.65 817 797 156.9
B 12 111 19327 118.13 817 797 156.9
B 11 111 17192 104.52 817 797 156.9
C 2 16 389619 2106.31 779 784 184.6
C 14 238 124824 671.92 779 784 184.6
C 3 233 5292 24.42 779 784 184.6
D 8 195 1362757 6438.61 781 765 211.5
D 1 52 642755 3034.91 781 765 211.5
D 2 234 29632 136.46 781 765 211.5

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