ASTROSAT CZTI

Data Quality Report

Orbit 48116

Creation date: 2024-08-21T09:51:43.922152
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_223T01_9000006402_48116cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48116cztM0_level2_quad_clean.evt
Size (bytes)467,873,28088,202,880
Size446.2 MB 84.1 MB
Events in quadrant A7,392,299735,091
Events in quadrant B1,205,85446,303
Events in quadrant C2,944,513735,838
Events in quadrant D5,219,956657,592

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265492
B074802
C0142873
D0206762

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70624446.287171%
B70627062100.000000%
C7061170.240759%
D70615427.675967%

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 7742 7062 152 152 1.96% 2.15%
B 7741 7061 0 0 0.00% 0.00%
C 7741 7062 2 2 0.03% 0.03%
D 7741 7061 451 451 5.83% 6.39%

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 4262097 27261.92 741 722 156.3
A 13 248 234192 1493.61 741 722 156.3
A 15 249 19210 118.28 741 722 156.3
B 2 177 976040 82585.47 48 46 11.8
B 4 21 25000 2111.53 48 46 11.8
B 4 171 2702 224.74 48 46 11.8
C 12 2 17613 97.24 743 743 173.5
C 6 64 7577 39.39 743 743 173.5
C 1 3 7569 39.35 743 743 173.5
D 7 67 1774087 9831.96 718 694 180.4
D 2 37 312076 1726.35 718 694 180.4
D 2 165 175503 969.17 718 694 180.4

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