ASTROSAT CZTI

Data Quality Report

Orbit 47530

Creation date: 2024-07-12T17:01:57.215734
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/AS1C09_002T01_9000006334_47530cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47530cztM0_level2_quad_clean.evt
Size (bytes)557,049,600118,362,240
Size531.2 MB 112.9 MB
Events in quadrant A7,909,627758,995
Events in quadrant B3,650,249809,606
Events in quadrant C3,207,284797,063
Events in quadrant D5,287,585710,441

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0289752
B0155622
C0148852
D0207242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72915627.708133%
B72921451.988481%
C7292590.809106%
D72923194.374657%

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 9206 7293 210 210 2.28% 2.88%
B 9207 7294 35 35 0.38% 0.48%
C 9207 7294 2 2 0.02% 0.03%
D 9207 7294 173 173 1.88% 2.37%

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 4141320 24868.28 806 787 166.5
A 13 248 479624 2875.92 806 787 166.5
A 9 191 167978 1004.16 806 787 166.5
B 5 32 195752 1223.75 816 790 159.3
B 0 198 152556 952.61 816 790 159.3
B 0 190 24642 149.72 816 790 159.3
C 12 2 32139 164.18 813 814 190.8
C 14 254 6057 27.48 813 814 190.8
C 13 61 5526 24.7 813 814 190.8
D 2 165 1108887 5525.16 807 784 200.6
D 2 249 261451 1299.72 807 784 200.6
D 7 38 247451 1229.92 807 784 200.6

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