ASTROSAT CZTI

Data Quality Report

Orbit 43802

Creation date: 2024-06-27T22:55:56.605646
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/AS1A13_018T01_9000005906_43802cztM0_level2.fits modeM0/AS1A13_018T01_9000005906_43802cztM0_level2_quad_clean.evt
Size (bytes)684,480,960107,746,560
Size652.8 MB 102.8 MB
Events in quadrant A6,088,265703,968
Events in quadrant B3,621,155796,161
Events in quadrant C8,269,423626,177
Events in quadrant D6,804,451637,497

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226752
B0154372
C0293952
D0251882

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A715375410.541032%
B71531021.425975%
C7153153821.501468%
D715380611.267999%

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 8688 7154 484 484 5.57% 6.77%
B 8688 7155 19 19 0.22% 0.27%
C 8688 7154 1399 1399 16.10% 19.56%
D 8688 7155 635 635 7.31% 8.87%

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 15 223 1522271 9415.37 779 764 161.6
A 10 83 1041775 6441.97 779 764 161.6
A 13 248 303573 1873.84 779 764 161.6
B 0 200 107257 654.57 821 798 162.6
B 4 170 63341 384.55 821 798 162.6
B 0 213 53571 324.48 821 798 162.6
C 15 174 4502595 25605.14 737 743 175.8
C 15 158 327577 1858.93 737 743 175.8
C 15 190 279460 1585.26 737 743 175.8
D 12 33 2328744 11826.47 776 753 196.8
D 13 249 260013 1317.07 776 753 196.8
D 5 235 219943 1113.51 776 753 196.8

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