ASTROSAT CZTI

Data Quality Report

Orbit 04449

Creation date: 2024-06-27T14:42:13.043534
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_253T01_9000000560_04449cztM0_level2.evt modeM0/AS1G05_253T01_9000000560_04449cztM0_level2_quad_clean.evt
Size (bytes)223,698,24038,943,360
Size213.3 MB 37.1 MB
Events in quadrant A1,575,326237,814
Events in quadrant B1,676,066227,496
Events in quadrant C1,578,664229,375
Events in quadrant D1,695,349226,758

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09822
B09927
C09925
D09927

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12247644991680
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099882546
B0105023001
C0101302735
D0108662921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3659100.273299%
B3577120.335477%
C361550.138313%
D3637681.869673%

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 4997 4067 0 0 0.00% 0.00%
B 4997 3980 1 1 0.02% 0.03%
C 4997 4012 1 1 0.02% 0.02%
D 4997 4043 51 51 1.02% 1.26%

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 0 13 6675 74.12 403 395 84.7
A 13 14 4880 52.93 403 395 84.7
A 0 226 4378 47.01 403 395 84.7
B 15 204 73382 932.12 401 390 78.3
B 15 54 20784 260.43 401 390 78.3
B 15 185 18592 232.44 401 390 78.3
C 14 48 20405 215.63 389 389 92.8
C 8 128 10513 109.06 389 389 92.8
C 9 16 10395 107.79 389 389 92.8
D 8 230 120390 1260.17 387 374 95.2
D 12 227 50824 529.73 387 374 95.2
D 13 239 19361 199.36 387 374 95.2

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