ASTROSAT CZTI

Data Quality Report

Orbit 36573

Creation date: 2024-06-27T21:28:36.507108
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/AS1A11_097T17_9000005222_36573cztM0_level2.evt modeM0/AS1A11_097T17_9000005222_36573cztM0_level2_quad_clean.evt
Size (bytes)948,859,200123,589,440
Size904.9 MB 117.9 MB
Events in quadrant A5,241,226775,018
Events in quadrant B5,502,173773,429
Events in quadrant C6,385,482747,120
Events in quadrant D10,872,002692,600

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0227484
B0236033
C0256843
D0400883

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02240
B02240
C02240
D02240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10892180.165259%
B10892760.697760%
C108923463.176643%
D10892110310.126698%

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 15010 10895 0 0 0.00% 0.00%
B 15010 10895 40 40 0.27% 0.37%
C 15010 10895 241 241 1.61% 2.21%
D 15010 10895 675 675 4.50% 6.20%

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 357427 1426.72 1244 1219 249.7
A 15 223 34964 135.16 1244 1219 249.7
A 13 254 16469 61.08 1244 1219 249.7
B 5 255 200315 837.33 1233 1197 237.8
B 0 219 157538 657.44 1233 1197 237.8
B 5 172 71514 295.69 1233 1197 237.8
C 0 10 738022 2648.28 1197 1205 278.2
C 15 214 456252 1635.54 1197 1205 278.2
C 14 254 447421 1603.8 1197 1205 278.2
D 1 20 2727344 9481.89 1172 1141 287.5
D 12 235 1016434 3531.25 1172 1141 287.5
D 12 16 938944 3261.73 1172 1141 287.5

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