ASTROSAT CZTI

Data Quality Report

Orbit 09841

Creation date: 2024-06-27T15:51:19.127103
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/AS1A03_134T01_9000001400_09841cztM0_level2.evt modeM0/AS1A03_134T01_9000001400_09841cztM0_level2_quad_clean.evt
Size (bytes)213,048,00036,279,360
Size203.2 MB 34.6 MB
Events in quadrant A1,498,121222,565
Events in quadrant B1,608,641228,480
Events in quadrant C1,471,414219,375
Events in quadrant D1,663,420209,639

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06970608
B07396737
C06951636
D07667680

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0706
B07010
C0708
D0704

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0131
C0130
D0131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3076160.520156%
B3037260.856108%
C306350.163239%
D3071200.651254%

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 4683 3291 0 0 0.00% 0.00%
B 4683 3273 9 9 0.19% 0.27%
C 4694 3296 0 0 0.00% 0.00%
D 4694 3293 16 16 0.34% 0.49%

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 0 226 3486 38.83 389 382 79.9
A 12 194 3034 33.18 389 382 79.9
A 3 137 1683 16.27 389 382 79.9
B 4 81 71320 961.34 388 379 73.8
B 4 173 13503 177.85 388 379 73.8
B 4 239 9207 119.63 388 379 73.8
C 13 61 2814 28.06 375 377 86.9
C 14 234 2722 27.0 375 377 86.9
C 10 22 2543 24.94 375 377 86.9
D 2 16 106621 1190.62 371 362 89.2
D 1 52 80512 898.07 371 362 89.2
D 10 253 28907 319.84 371 362 89.2

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