ASTROSAT CZTI

Data Quality Report

Orbit 03167

Creation date: 2024-06-27T14:25:26.573062
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/AS1G05_218T02_9000000434_03167cztM0_level2.evt modeM0/AS1G05_218T02_9000000434_03167cztM0_level2_quad_clean.evt
Size (bytes)845,032,320156,620,160
Size805.9 MB 149.4 MB
Events in quadrant A5,338,764991,944
Events in quadrant B5,431,5171,012,236
Events in quadrant C7,912,680959,989
Events in quadrant D6,098,088951,082

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02420
B02420
C02420
D02420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246980
B0246590
C0321960
D0269630

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11977680.567755%
B11977470.392419%
C119777416.186858%
D119771371.143859%

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 14132 11979 30 30 0.21% 0.25%
B 14132 11979 5 5 0.04% 0.04%
C 14132 11978 643 643 4.55% 5.37%
D 14132 11979 91 91 0.64% 0.76%

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 12 247 133801 494.64 1320 1292 267.9
A 8 15 44054 159.63 1320 1292 267.9
A 14 238 37171 133.93 1320 1292 267.9
B 2 249 72754 278.24 1357 1327 256.7
B 0 219 31749 118.51 1357 1327 256.7
B 15 85 22416 82.15 1357 1327 256.7
C 14 223 2664223 9024.57 1268 1272 295.1
C 1 192 130048 436.41 1268 1272 295.1
C 6 80 81024 270.27 1268 1272 295.1
D 2 136 408451 1321.68 1277 1237 308.1
D 5 233 189576 611.29 1277 1237 308.1
D 13 223 188572 608.03 1277 1237 308.1

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