ASTROSAT CZTI

Data Quality Report

Orbit 46193

Creation date: 2024-06-27T23:20:12.545496
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_093T40_9000006182_46193cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46193cztM0_level2_quad_clean.evt
Size (bytes)1,131,071,040223,450,560
Size1.1 GB 213.1 MB
Events in quadrant A13,437,4691,452,593
Events in quadrant B10,138,7721,525,389
Events in quadrant C6,470,9231,478,854
Events in quadrant D10,709,0971,313,636

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02920
B02920
C02920
D02920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0486482
B0398422
C0299832
D0417373

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A144066404.442593%
B144075583.873117%
C144071160.805164%
D144067044.886853%

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 15141 14408 333 333 2.20% 2.31%
B 15142 14409 284 284 1.88% 1.97%
C 15142 14410 51 51 0.34% 0.35%
D 15141 14409 590 590 3.90% 4.09%

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 5972808 18707.13 1548 1512 319.2
A 0 247 1033326 3232.51 1548 1512 319.2
A 9 191 227712 708.65 1548 1512 319.2
B 3 112 3286305 10851.09 1550 1499 302.7
B 5 172 303458 997.5 1550 1499 302.7
B 4 171 239308 785.58 1550 1499 302.7
C 12 2 306429 840.83 1547 1553 362.6
C 11 16 53798 144.09 1547 1553 362.6
C 14 254 49736 132.89 1547 1553 362.6
D 1 52 2136299 5587.51 1525 1481 382.1
D 13 249 1089250 2847.04 1525 1481 382.1
D 10 255 686220 1792.18 1525 1481 382.1

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