ASTROSAT CZTI

Data Quality Report

Orbit 47579

Creation date: 2024-07-16T01:19:32.657917
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_002T01_9000006334_47579cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47579cztM0_level2_quad_clean.evt
Size (bytes)327,623,04049,498,560
Size312.4 MB 47.2 MB
Events in quadrant A3,474,468349,031
Events in quadrant B1,550,737356,206
Events in quadrant C1,285,233340,010
Events in quadrant D5,569,680227,701

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123940
B067700
C063520
D0187580

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31741143.591682%
B317420.063012%
C317400.000000%
D317499531.348456%

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 3174 3174 27 27 0.85% 0.85%
B 3174 3174 1 1 0.03% 0.03%
C 3174 3174 0 0 0.00% 0.00%
D 3173 3173 1048 1048 33.03% 33.03%

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 1885023 26874.18 333 327 70.1
A 9 191 260271 3706.58 333 327 70.1
A 0 243 14067 195.92 333 327 70.1
B 0 190 96779 1452.31 336 326 66.4
B 0 200 43314 647.27 336 326 66.4
B 0 183 30020 447.1 336 326 66.4
C 14 220 15298 193.54 324 325 77.4
C 3 233 4066 48.36 324 325 77.4
C 13 61 2235 24.69 324 325 77.4
D 2 165 4230142 61000.29 269 259 69.3
D 2 249 74383 1068.96 269 259 69.3
D 12 233 54464 781.71 269 259 69.3

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