ASTROSAT CZTI

Data Quality Report

Orbit 45011

Creation date: 2024-06-27T23:09:00.175914
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_020T01_9000006040_45011cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45011cztM0_level2_quad_clean.evt
Size (bytes)599,981,760116,988,480
Size572.2 MB 111.6 MB
Events in quadrant A6,027,082803,987
Events in quadrant B4,167,778830,388
Events in quadrant C3,356,592808,815
Events in quadrant D8,133,667627,819

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221922
B0167882
C0143962
D0290712

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67683014.447400%
B67682513.708629%
C67681221.802600%
D6768129619.148936%

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 7913 6769 9 9 0.11% 0.13%
B 7913 6769 36 36 0.45% 0.53%
C 7913 6769 14 14 0.18% 0.21%
D 7913 6769 992 992 12.54% 14.66%

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 10 83 2621085 15366.43 832 815 170.5
A 13 248 153734 896.78 832 815 170.5
A 0 243 23461 132.81 832 815 170.5
B 0 189 178788 1100.21 832 806 161.8
B 4 171 159257 979.48 832 806 161.8
B 5 255 111493 684.22 832 806 161.8
C 15 208 81639 420.45 824 831 192.2
C 14 254 32095 162.67 824 831 192.2
C 12 2 16399 81.0 824 831 192.2
D 11 241 1219166 6312.95 763 741 193.0
D 5 235 1072330 5552.15 763 741 193.0
D 12 233 1018333 5272.38 763 741 193.0

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