ASTROSAT CZTI

Data Quality Report

Orbit 45210

Creation date: 2024-06-27T23:10:36.964309
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_049T06_9000006054_45210cztM0_level2.fits modeM0/AS1A13_049T06_9000006054_45210cztM0_level2_quad_clean.evt
Size (bytes)1,666,350,720371,419,200
Size1.6 GB 354.2 MB
Events in quadrant A18,756,7992,463,803
Events in quadrant B12,021,6752,551,512
Events in quadrant C10,658,0922,480,515
Events in quadrant D18,422,5192,125,696

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0741584
B0517154
C0488164
D0716344

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04820
B04820
C04820
D04820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A235997393.131489%
B235995622.381457%
C235991950.826306%
D2359919828.398661%

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 25884 23601 76 76 0.29% 0.32%
B 25884 23601 107 107 0.41% 0.45%
C 25884 23602 19 19 0.07% 0.08%
D 25884 23602 1552 1552 6.00% 6.58%

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 8188696 15144.06 2626 2568 540.6
A 15 174 154756 281.54 2626 2568 540.6
A 0 243 92365 166.12 2626 2568 540.6
B 3 112 599308 1172.31 2621 2531 509.1
B 5 32 240489 467.44 2621 2531 509.1
B 5 172 179219 347.08 2621 2531 509.1
C 12 2 277766 451.65 2609 2623 609.2
C 3 233 128071 205.93 2609 2623 609.2
C 1 3 48581 75.44 2609 2623 609.2
D 13 249 2412461 3787.47 2526 2445 636.3
D 4 221 1358248 2130.72 2526 2445 636.3
D 4 232 815222 1277.32 2526 2445 636.3

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