ASTROSAT CZTI

Data Quality Report

Orbit 45410

Creation date: 2024-06-27T23:11:07.567059
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_049T07_9000006056_45410cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45410cztM0_level2_quad_clean.evt
Size (bytes)738,527,040155,390,400
Size704.3 MB 148.2 MB
Events in quadrant A8,037,1731,025,349
Events in quadrant B4,798,5291,071,935
Events in quadrant C4,468,5831,031,062
Events in quadrant D9,259,017883,050

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0305322
B0212441
C0207310
D0344592

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02000
B02000
C02000
D02000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A100022902.899420%
B100032192.189343%
C100031091.089673%
D100028988.978204%

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 10003 10003 1 1 0.01% 0.01%
B 10003 10003 1 1 0.01% 0.01%
C 10003 10003 22 22 0.22% 0.22%
D 10003 10003 722 722 7.22% 7.22%

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 3649823 15710.31 1112 1087 232.3
A 9 191 34031 141.85 1112 1087 232.3
A 13 248 18056 73.06 1112 1087 232.3
B 15 201 143556 650.51 1109 1074 219.0
B 3 112 75160 338.24 1109 1074 219.0
B 5 172 60481 271.23 1109 1074 219.0
C 12 2 60213 230.57 1092 1098 256.4
C 3 233 54554 208.5 1092 1098 256.4
C 1 3 29882 112.27 1092 1098 256.4
D 1 52 2028049 7554.72 1060 1026 268.3
D 11 241 1126501 4194.65 1060 1026 268.3
D 2 249 1042646 3882.12 1060 1026 268.3

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