ASTROSAT CZTI

Data Quality Report

Orbit 04438

Creation date: 2024-06-27T14:41:59.687540
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/AS1G05_214T01_9000000552_04438cztM0_level2.evt modeM0/AS1G05_214T01_9000000552_04438cztM0_level2_quad_clean.evt
Size (bytes)362,652,48054,241,920
Size345.9 MB 51.7 MB
Events in quadrant A2,313,110316,188
Events in quadrant B2,387,911322,898
Events in quadrant C3,453,900322,997
Events in quadrant D2,467,591309,394

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107330
B0108370
C0141840
D0113370

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5291400.756001%
B5291400.756001%
C52911863.515404%
D5291330.623701%

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 5291 5291 0 0 0.00% 0.00%
B 5291 5291 0 0 0.00% 0.00%
C 5291 5291 182 182 3.44% 3.44%
D 5291 5291 7 7 0.13% 0.13%

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 12 194 5925 43.31 600 587 123.2
A 0 226 5806 42.35 600 587 123.2
A 10 17 1870 10.41 600 587 123.2
B 4 48 14779 120.58 607 594 117.6
B 12 111 11393 91.8 607 594 117.6
B 11 111 8864 70.3 607 594 117.6
C 9 247 1152036 8316.32 582 585 138.5
C 7 239 19308 135.23 582 585 138.5
C 14 48 9014 60.88 582 585 138.5
D 2 63 185762 1219.43 579 564 151.9
D 13 239 30213 195.22 579 564 151.9
D 8 112 17329 110.39 579 564 151.9

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