ASTROSAT CZTI

Data Quality Report

Orbit 29946

Creation date: 2024-06-27T20:09:04.208979
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/AS1A10_058T01_9000004298_29946cztM0_level2.evt modeM0/AS1A10_058T01_9000004298_29946cztM0_level2_quad_clean.evt
Size (bytes)889,585,920151,263,360
Size848.4 MB 144.3 MB
Events in quadrant A5,241,772973,467
Events in quadrant B8,449,438971,591
Events in quadrant C6,399,627945,863
Events in quadrant D6,105,970927,278

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225472
B0334482
C0261102
D0249792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02260
B02260
C02260
D02260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11016640.580973%
B110171451.316148%
C110171911.733684%
D11017930.844150%

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 12856 11017 0 0 0.00% 0.00%
B 12857 11018 7 7 0.05% 0.06%
C 12857 11017 2 2 0.02% 0.02%
D 12857 11018 29 29 0.23% 0.26%

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 8 192 23870 84.01 1348 1320 268.4
A 13 254 21090 73.65 1348 1320 268.4
A 3 137 13064 43.75 1348 1320 268.4
B 6 159 3083077 12317.31 1325 1291 250.2
B 5 255 137909 546.03 1325 1291 250.2
B 12 111 31255 119.76 1325 1291 250.2
C 3 233 1050562 3471.87 1299 1305 302.2
C 14 238 227440 748.26 1299 1305 302.2
C 14 254 30016 95.0 1299 1305 302.2
D 8 195 827561 2647.91 1321 1287 312.0
D 2 250 161049 511.98 1321 1287 312.0
D 13 189 46659 145.4 1321 1287 312.0

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