ASTROSAT CZTI

Data Quality Report

Orbit 19384

Creation date: 2024-06-27T18:02:13.458139
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/AS1A05_104T05_9000002870_19384cztM0_level2.evt modeM0/AS1A05_104T05_9000002870_19384cztM0_level2_quad_clean.evt
Size (bytes)844,191,36094,855,680
Size805.1 MB 90.5 MB
Events in quadrant A3,592,297646,623
Events in quadrant B3,607,283653,816
Events in quadrant C3,572,700630,877
Events in quadrant D14,316,112447,957

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151162
B0151312
C0149622
D0473393

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70561502.125850%
B70561812.565193%
C70562213.132086%
D7055462965.613040%

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 9016 7057 0 0 0.00% 0.00%
B 9016 7057 0 0 0.00% 0.00%
C 9016 7056 0 0 0.00% 0.00%
D 9015 7055 4042 4042 44.84% 57.29%

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 15 174 32213 171.04 915 898 183.1
A 14 111 22256 116.65 915 898 183.1
A 12 96 9255 45.64 915 898 183.1
B 0 198 33913 189.3 909 886 174.5
B 12 111 21294 116.97 909 886 174.5
B 11 111 18818 102.78 909 886 174.5
C 14 238 136819 655.6 881 888 207.3
C 13 61 6087 25.08 881 888 207.3
C 3 233 3593 13.05 881 888 207.3
D 7 238 6354186 40862.66 642 623 155.5
D 10 66 4325344 27814.25 642 623 155.5
D 1 52 1136773 7307.1 642 623 155.5

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