ASTROSAT CZTI

Data Quality Report

Orbit 46324

Creation date: 2024-06-27T23:21:43.463162
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/AS1T05_200T01_9000006196_46324cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46324cztM0_level2_quad_clean.evt
Size (bytes)674,769,60084,602,880
Size643.5 MB 80.7 MB
Events in quadrant A14,405,08832,640
Events in quadrant B3,537,621736,875
Events in quadrant C2,930,647688,956
Events in quadrant D3,573,981629,502

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0474491
B0149262
C0138981
D0156041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6794655796.511628%
B6793751.104078%
C6794480.706506%
D67941141.677951%

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 7594 6795 4113 4113 54.16% 60.53%
B 7593 6794 12 12 0.16% 0.18%
C 7594 6795 2 2 0.03% 0.03%
D 7594 6795 77 77 1.01% 1.13%

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 15 223 12862250 327871.03 181 177 39.2
A 10 83 778223 19833.41 181 177 39.2
A 15 239 49106 1247.26 181 177 39.2
B 3 112 447637 3053.54 742 720 146.4
B 5 172 48767 328.28 742 720 146.4
B 15 201 25876 171.88 742 720 146.4
C 1 3 41397 233.74 732 737 174.0
C 12 2 29992 168.18 732 737 174.0
C 0 207 5847 29.38 732 737 174.0
D 13 249 410398 2249.31 723 700 182.1
D 1 52 182417 997.66 723 700 182.1
D 10 253 132542 723.84 723 700 182.1

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