ASTROSAT CZTI

Data Quality Report

Orbit 12234

Creation date: 2024-06-27T16:24:12.102593
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/AS1C03_014T02_9000001806_12234cztM0_level2.evt modeM0/AS1C03_014T02_9000001806_12234cztM0_level2_quad_clean.evt
Size (bytes)191,963,52034,623,360
Size183.1 MB 33.0 MB
Events in quadrant A2,378,190222,840
Events in quadrant B1,628,044216,085
Events in quadrant C831,932235,028
Events in quadrant D837,741228,890

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084910
B061920
C040880
D040890

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A199525312.681704%
B199527013.533835%
C199540.200501%
D199500.000000%

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 1996 1996 200 200 10.02% 10.02%
B 1996 1996 207 207 10.37% 10.37%
C 1996 1996 3 3 0.15% 0.15%
D 1996 1996 2 2 0.10% 0.10%

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 13 251 1436398 33111.71 203 198 43.4
A 1 162 48068 1103.65 203 198 43.4
A 5 16 35712 818.78 203 198 43.4
B 4 239 678184 17596.13 194 191 38.5
B 10 246 64959 1680.94 194 191 38.5
B 11 51 59090 1528.62 194 191 38.5
C 15 208 37777 802.16 197 198 46.8
C 4 175 20463 432.57 197 198 46.8
C 13 61 1531 28.45 197 198 46.8
D 13 104 18275 356.3 198 191 50.8
D 10 199 17017 331.51 198 191 50.8
D 10 157 14826 288.34 198 191 50.8

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