ASTROSAT CZTI

Data Quality Report

Orbit 47021

Creation date: 2024-06-27T23:30:49.854205
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/AS1C09_005T01_9000006296_47021cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47021cztM0_level2_quad_clean.evt
Size (bytes)1,042,617,600172,892,160
Size994.3 MB 164.9 MB
Events in quadrant A11,128,5901,211,416
Events in quadrant B15,958,854912,766
Events in quadrant C5,291,3591,204,445
Events in quadrant D5,324,9411,108,953

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02340
B02340
C02340
D02340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0409062
B0554842
C0242542
D0245602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A115202672.317708%
B11520357831.059028%
C115201191.032986%
D11521990.859300%

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 13280 11522 35 35 0.26% 0.30%
B 13279 11521 2736 2736 20.60% 23.75%
C 13279 11521 54 54 0.41% 0.47%
D 13281 11523 55 55 0.41% 0.48%

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 5934564 23087.58 1249 1221 257.0
A 9 191 316768 1227.84 1249 1221 257.0
A 13 248 33402 125.22 1249 1221 257.0
B 3 112 10900178 50505.29 1110 1073 215.8
B 5 172 176541 813.1 1110 1073 215.8
B 0 200 163706 753.62 1110 1073 215.8
C 14 254 363616 1249.42 1243 1249 290.0
C 9 54 66686 225.62 1243 1249 290.0
C 12 249 10813 32.98 1243 1249 290.0
D 13 249 212786 678.41 1245 1208 311.9
D 2 249 133913 425.51 1245 1208 311.9
D 12 233 92930 294.1 1245 1208 311.9

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