ASTROSAT CZTI

Data Quality Report

Orbit 46560

Creation date: 2024-06-27T23:24:44.307161
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/AS1C03_005T02_9000006230_46560cztM0_level2.fits modeM0/AS1C03_005T02_9000006230_46560cztM0_level2_quad_clean.evt
Size (bytes)867,159,360197,314,560
Size827.0 MB 188.2 MB
Events in quadrant A11,292,7381,316,604
Events in quadrant B5,671,1521,379,407
Events in quadrant C5,496,4461,306,351
Events in quadrant D8,716,4051,147,209

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02420
B02420
C02420
D02420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410703
B0251583
C0249303
D0341853

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A119283913.278001%
B11928850.712609%
C11928650.544936%
D119286225.214621%

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 14158 11928 137 137 0.97% 1.15%
B 14158 11928 11 11 0.08% 0.09%
C 14158 11930 30 30 0.21% 0.25%
D 14158 11928 501 501 3.54% 4.20%

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 5875777 21801.7 1311 1283 269.5
A 13 248 185041 681.97 1311 1283 269.5
A 0 247 72108 262.85 1311 1283 269.5
B 15 201 100729 389.97 1325 1285 255.0
B 0 245 71015 273.45 1325 1285 255.0
B 5 172 42822 162.89 1325 1285 255.0
C 14 254 197329 649.53 1305 1308 301.8
C 12 2 104341 341.41 1305 1308 301.8
C 1 3 48114 155.1 1305 1308 301.8
D 1 52 1955771 6216.99 1273 1234 314.4
D 13 249 600247 1905.34 1273 1234 314.4
D 8 176 377435 1196.62 1273 1234 314.4

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