ASTROSAT CZTI

Data Quality Report

Orbit 40230

Creation date: 2024-06-27T22:13:54.161806
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_086T01_9000005534_40230cztM0_level2.fits modeM0/AS1T05_086T01_9000005534_40230cztM0_level2_quad_clean.evt
Size (bytes)77,601,60017,801,280
Size74.0 MB 17.0 MB
Events in quadrant A688,677106,783
Events in quadrant B650,297124,358
Events in quadrant C725,973117,962
Events in quadrant D703,42392,825

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110458320
B0103847627
C0101757250
D0125449688

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03615
B03416
C02914
D03715

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010572
B010676
C010781
D010777

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A124360.482703%
B134230.223547%
C137960.435098%
D117470.596252%

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 7070 1833 3 3 0.04% 0.16%
B 7098 1924 0 0 0.00% 0.00%
C 7034 2020 4 4 0.06% 0.20%
D 7083 1681 2 2 0.03% 0.12%

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 111478 3557.7 141 137 31.3
A 13 248 31250 994.16 141 137 31.3
A 13 254 1718 50.52 141 137 31.3
B 0 229 22741 698.28 155 151 32.4
B 0 245 9336 283.92 155 151 32.4
B 0 230 3920 116.5 155 151 32.4
C 15 214 61128 1573.07 156 157 38.8
C 14 254 24662 632.24 156 157 38.8
C 9 187 15720 401.53 156 157 38.8
D 12 227 133341 3994.54 130 126 33.3
D 13 249 34272 1023.89 130 126 33.3
D 2 249 15959 474.76 130 126 33.3

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