ASTROSAT CZTI

Data Quality Report

Orbit 45808

Creation date: 2024-06-27T23:16:24.220403
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/AS1T05_088T01_9000006126_45808cztM0_level2.fits modeM0/AS1T05_088T01_9000006126_45808cztM0_level2_quad_clean.evt
Size (bytes)670,224,96099,915,840
Size639.2 MB 95.3 MB
Events in quadrant A5,270,381706,518
Events in quadrant B7,116,910652,782
Events in quadrant C3,064,586708,710
Events in quadrant D8,897,306540,492

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0191361
B0253431
C0130561
D0305961

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59631492.498742%
B596499516.683434%
C59641131.894702%
D5964131121.981891%

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 7138 5964 2 2 0.03% 0.03%
B 7139 5965 684 684 9.58% 11.47%
C 7139 5965 55 55 0.77% 0.92%
D 7139 5965 1212 1212 16.98% 20.32%

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 10 83 2540093 17389.81 702 687 146.0
A 13 248 12172 78.65 702 687 146.0
A 13 254 10694 68.53 702 687 146.0
B 3 112 3933238 30201.29 674 654 130.2
B 0 171 184404 1411.16 674 654 130.2
B 4 171 92458 705.03 674 654 130.2
C 12 2 239501 1457.4 701 705 163.9
C 12 250 55098 331.97 701 705 163.9
C 12 249 13194 76.22 701 705 163.9
D 11 241 4479559 27171.93 658 638 164.8
D 1 52 563988 3417.63 658 638 164.8
D 1 47 425482 2577.37 658 638 164.8

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