ASTROSAT CZTI

Data Quality Report

Orbit 17373

Creation date: 2024-06-27T17:35:37.874419
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/AS1A05_012T02_9000002566_17373cztM0_level2.evt modeM0/AS1A05_012T02_9000002566_17373cztM0_level2_quad_clean.evt
Size (bytes)160,056,00013,170,240
Size152.6 MB 12.6 MB
Events in quadrant A763,09778,121
Events in quadrant B962,43776,439
Events in quadrant C803,18673,491
Events in quadrant D2,220,51565,138

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030831
B037291
C032251
D075661

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1407443.127221%
B14071178.315565%
C1407916.467662%
D140768648.756219%

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 2102 1409 0 0 0.00% 0.00%
B 2102 1409 14 14 0.67% 0.99%
C 2102 1408 0 0 0.00% 0.00%
D 2102 1409 459 459 21.84% 32.58%

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 15 174 3247 71.71 197 192 42.6
A 0 226 1798 37.7 197 192 42.6
A 12 194 1433 29.13 197 192 42.6
B 0 189 70172 1754.85 194 189 39.9
B 5 172 33866 844.46 194 189 39.9
B 15 35 33315 830.65 194 189 39.9
C 3 233 35767 789.17 187 187 45.1
C 14 238 28261 622.69 187 187 45.1
C 0 79 3838 80.98 187 187 45.1
D 11 176 1176498 28073.62 163 157 41.9
D 1 52 171212 4082.26 163 157 41.9
D 13 232 159599 3805.12 163 157 41.9

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