ASTROSAT CZTI

Data Quality Report

Orbit 45053

Creation date: 2024-06-27T23:09:25.260908
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_45053cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45053cztM0_level2_quad_clean.evt
Size (bytes)659,105,280107,101,440
Size628.6 MB 102.1 MB
Events in quadrant A5,658,215755,075
Events in quadrant B4,117,435761,497
Events in quadrant C3,406,673759,712
Events in quadrant D10,723,933522,568

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210602
B0163342
C0141462
D0362682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63612213.474296%
B63623144.935555%
C6362931.461804%
D6361191330.073888%

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 7551 6362 59 59 0.78% 0.93%
B 7552 6363 145 145 1.92% 2.28%
C 7552 6363 54 54 0.72% 0.85%
D 7551 6362 1857 1857 24.59% 29.19%

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 2434155 15336.76 768 752 158.7
A 7 191 134889 845.41 768 752 158.7
A 13 248 82718 516.6 768 752 158.7
B 4 171 299893 2022.69 752 729 147.9
B 5 32 290334 1958.06 752 729 147.9
B 5 255 146073 982.69 752 729 147.9
C 15 208 185475 1047.04 760 765 176.4
C 14 254 167612 945.78 760 765 176.4
C 1 3 59760 334.42 760 765 176.4
D 11 241 4135384 23499.96 691 668 175.9
D 13 174 1534489 8717.58 691 668 175.9
D 13 249 1193057 6777.03 691 668 175.9

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