ASTROSAT CZTI

Data Quality Report

Orbit 46154

Creation date: 2024-06-27T23:19:46.056921
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/AS1A13_092T03_9000006176_46154cztM0_level2.fits modeM0/AS1A13_092T03_9000006176_46154cztM0_level2_quad_clean.evt
Size (bytes)938,499,84074,626,560
Size895.0 MB 71.2 MB
Events in quadrant A5,536,877685,292
Events in quadrant B13,875,264192,982
Events in quadrant C10,266,213375,263
Events in quadrant D4,595,682584,293

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204101
B0448801
C0346111
D0179531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60351913.164872%
B6035462676.652858%
C6035316552.444076%
D60365308.780649%

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 7185 6036 21 21 0.29% 0.35%
B 7185 6035 4555 4555 63.40% 75.48%
C 7185 6035 2380 2380 33.12% 39.44%
D 7186 6037 392 392 5.46% 6.49%

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 10 83 2759370 19386.17 691 676 142.3
A 9 191 49504 343.13 691 676 142.3
A 0 247 21273 144.74 691 676 142.3
B 10 246 12525493 253108.33 251 243 49.5
B 3 112 342330 6912.84 251 243 49.5
B 0 186 9051 177.99 251 243 49.5
C 14 254 7937642 62404.21 542 544 127.2
C 12 2 102725 803.38 542 544 127.2
C 10 218 66372 517.56 542 544 127.2
D 2 37 532069 3211.69 664 643 165.5
D 5 235 451836 2726.8 664 643 165.5
D 2 249 400214 2414.82 664 643 165.5

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