ASTROSAT CZTI

Data Quality Report

Orbit 03283

Creation date: 2024-06-27T14:27:03.437232
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_002T02_9000000444_03283cztM0_level2.evt modeM0/AS1G05_002T02_9000000444_03283cztM0_level2_quad_clean.evt
Size (bytes)36,498,2407,873,920
Size34.8 MB 7.5 MB
Events in quadrant A230,78150,982
Events in quadrant B407,23050,533
Events in quadrant C225,42849,784
Events in quadrant D209,67349,001

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09341
B015101
C09191
D08871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42340.945626%
B423317.328605%
C42320.472813%
D42310.236407%

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 423 423 0 0 0.00% 0.00%
B 423 423 4 4 0.95% 0.95%
C 423 423 0 0 0.00% 0.00%
D 423 423 0 0 0.00% 0.00%

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 0 118 6412 445.27 57 56 14.3
A 0 226 1217 81.33 57 56 14.3
A 12 194 686 44.13 57 56 14.3
B 15 204 119558 8902.9 57 56 13.4
B 5 200 26812 1993.32 57 56 13.4
B 4 81 26001 1932.9 57 56 13.4
C 1 16 8781 604.62 53 53 14.4
C 14 223 2325 157.39 53 53 14.4
C 12 175 2068 139.59 53 53 14.4
D 1 193 1240 76.78 54 52 15.5
D 9 65 961 58.75 54 52 15.5
D 3 254 854 51.83 54 52 15.5

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
Veto Counter