ASTROSAT CZTI

Data Quality Report

Orbit 32953

Creation date: 2024-06-27T20:43:49.225252
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/AS1C07_001T01_9000004752_32953cztM0_level2.evt modeM0/AS1C07_001T01_9000004752_32953cztM0_level2_quad_clean.evt
Size (bytes)643,849,920103,800,960
Size614.0 MB 99.0 MB
Events in quadrant A2,641,929734,961
Events in quadrant B5,566,943663,975
Events in quadrant C2,867,149718,910
Events in quadrant D8,024,514613,008

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118463
B0204822
C0126312
D0279952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A590050.084746%
B5900107118.152542%
C5900741.254237%
D5900120520.423729%

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 7213 5901 0 0 0.00% 0.00%
B 7212 5900 772 772 10.70% 13.08%
C 7213 5901 65 65 0.90% 1.10%
D 7213 5901 1172 1172 16.25% 19.86%

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 0 191 12109 83.58 677 660 137.0
A 13 254 11599 79.86 677 660 137.0
A 13 6 9314 63.17 677 660 137.0
B 5 172 1706164 14446.85 617 602 118.1
B 5 200 1256869 10641.13 617 602 118.1
B 0 199 81339 683.88 617 602 118.1
C 0 10 140123 928.32 650 655 150.2
C 9 187 112044 741.42 650 655 150.2
C 1 241 37646 246.22 650 655 150.2
D 12 227 2366998 15051.23 604 590 157.2
D 8 195 1202199 7642.68 604 590 157.2
D 7 80 1045373 6645.2 604 590 157.2

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