ASTROSAT CZTI

Data Quality Report

Orbit 03230

Creation date: 2024-06-27T14:26:07.209486
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_221T01_9000000438_03230cztM0_level2.evt modeM0/AS1G05_221T01_9000000438_03230cztM0_level2_quad_clean.evt
Size (bytes)598,127,04080,758,080
Size570.4 MB 77.0 MB
Events in quadrant A4,271,072486,858
Events in quadrant B4,277,792485,384
Events in quadrant C5,241,728484,696
Events in quadrant D3,822,582474,210

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175843
B0174152
C0206932
D0167242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73833364.550996%
B73833154.266558%
C738395912.989300%
D73832843.846675%

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 9278 7383 68 68 0.73% 0.92%
B 9278 7383 45 45 0.49% 0.61%
C 9278 7383 631 631 6.80% 8.55%
D 9278 7383 47 47 0.51% 0.64%

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 0 199 476976 2637.02 876 856 180.6
A 0 50 272178 1502.73 876 856 180.6
A 0 226 59354 324.0 876 856 180.6
B 15 204 578588 3382.4 892 871 170.8
B 4 170 82215 476.25 892 871 170.8
B 5 200 62472 360.66 892 871 170.8
C 14 223 1921868 10092.75 823 826 190.3
C 6 80 59484 308.18 823 826 190.3
C 15 208 21987 111.18 823 826 190.3
D 13 120 259856 1241.47 855 828 208.6
D 13 223 137819 656.57 855 828 208.6
D 9 85 74189 351.61 855 828 208.6

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