ASTROSAT CZTI

Data Quality Report

Orbit 10582

Creation date: 2024-06-27T16:01:04.864211
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/AS1G07_046T01_9000001534_10582cztM0_level2.evt modeM0/AS1G07_046T01_9000001534_10582cztM0_level2_quad_clean.evt
Size (bytes)501,390,72072,478,080
Size478.2 MB 69.1 MB
Events in quadrant A3,039,549451,071
Events in quadrant B4,547,116438,026
Events in quadrant C2,929,103445,785
Events in quadrant D4,237,746416,196

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132192
B0175211
C0129491
D0169911

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6357170.267422%
B63574617.251848%
C635770.110115%
D6357170.267422%

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 7517 6358 0 0 0.00% 0.00%
B 7517 6358 281 281 3.74% 4.42%
C 7517 6358 0 0 0.00% 0.00%
D 7517 6358 9 9 0.12% 0.14%

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 13 251 83129 529.46 762 746 155.6
A 1 162 15049 91.92 762 746 155.6
A 0 226 6887 39.47 762 746 155.6
B 4 239 1335804 9322.06 751 733 143.2
B 0 219 158408 1100.96 751 733 143.2
B 4 81 43986 302.01 751 733 143.2
C 14 67 17709 98.68 740 744 171.9
C 4 254 10261 55.36 740 744 171.9
C 4 175 7662 40.24 740 744 171.9
D 2 16 1069528 6063.89 726 706 176.3
D 8 195 300481 1700.75 726 706 176.3
D 9 85 46167 257.92 726 706 176.3

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