ASTROSAT CZTI

Data Quality Report

Orbit 44370

Creation date: 2024-06-27T23:02:46.756095
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/AS1A13_008T05_9000005996_44370cztM0_level2.fits modeM0/AS1A13_008T05_9000005996_44370cztM0_level2_quad_clean.evt
Size (bytes)167,832,00035,634,240
Size160.1 MB 34.0 MB
Events in quadrant A2,177,510229,222
Events in quadrant B1,091,999255,351
Events in quadrant C1,418,324228,729
Events in quadrant D1,365,479219,337

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078691
B044211
C054731
D053331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A201924912.332838%
B2019763.764240%
C20191829.014364%
D2019914.507182%

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 3094 2019 70 70 2.26% 3.47%
B 3094 2019 1 1 0.03% 0.05%
C 3093 2018 123 123 3.98% 6.10%
D 3094 2019 36 36 1.16% 1.78%

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 554261 9866.74 262 256 56.1
A 15 223 338978 6032.59 262 256 56.1
A 13 248 259197 4611.7 262 256 56.1
B 5 255 15409 281.01 265 258 53.9
B 0 190 8319 149.51 265 258 53.9
B 12 111 6743 120.28 265 258 53.9
C 14 96 356357 5843.75 254 256 60.9
C 14 254 41069 669.76 254 256 60.9
C 1 3 18546 300.15 254 256 60.9
D 13 249 166800 2505.55 261 252 66.5
D 5 222 82619 1239.13 261 252 66.5
D 2 249 34228 511.14 261 252 66.5

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