ASTROSAT CZTI

Data Quality Report

Orbit 07354

Creation date: 2024-06-27T15:18:53.393873
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_157T02_9000001008_07354cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07354cztM0_level2_quad_clean.evt
Size (bytes)478,126,08091,647,360
Size456.0 MB 87.4 MB
Events in quadrant A2,903,999586,459
Events in quadrant B3,052,503608,440
Events in quadrant C3,972,299591,641
Events in quadrant D4,120,435546,036

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130903
B0134982
C0163682
D0168962

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6349210.330761%
B6349350.551268%
C6349280.441014%
D63493415.370925%

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 7579 6350 1 1 0.01% 0.02%
B 7579 6350 0 0 0.00% 0.00%
C 7579 6350 5 5 0.07% 0.08%
D 7579 6350 292 292 3.85% 4.60%

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 15 239 17486 110.01 750 732 152.3
A 0 226 7158 42.2 750 732 152.3
A 12 194 6492 37.82 750 732 152.3
B 0 214 70903 474.26 767 748 147.9
B 12 111 14914 95.76 767 748 147.9
B 11 111 11726 74.21 767 748 147.9
C 9 68 1069630 6235.17 738 743 171.4
C 10 22 17871 99.91 738 743 171.4
C 13 61 5839 29.73 738 743 171.4
D 1 52 1067994 5990.01 713 691 178.2
D 14 34 198859 1112.18 713 691 178.2
D 2 216 64313 357.06 713 691 178.2

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