ASTROSAT CZTI

Data Quality Report

Orbit 09107

Creation date: 2024-06-27T15:41:22.979486
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/AS1A03_105T01_9000001268_09107cztM0_level2.evt modeM0/AS1A03_105T01_9000001268_09107cztM0_level2_quad_clean.evt
Size (bytes)493,729,92077,244,480
Size470.9 MB 73.7 MB
Events in quadrant A3,763,785466,697
Events in quadrant B3,484,570471,819
Events in quadrant C3,313,511460,326
Events in quadrant D3,907,579444,783

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153703
B0148014
C0147782
D0163917

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71061452.040529%
B71051401.970443%
C7106971.365044%
D71041742.449324%

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 7661 7106 1 1 0.01% 0.01%
B 7661 7106 4 4 0.05% 0.06%
C 7661 7106 8 8 0.10% 0.11%
D 7661 7106 71 71 0.93% 1.00%

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 8 5 274716 1521.38 875 856 180.0
A 1 162 69406 380.82 875 856 180.0
A 15 174 24243 129.92 875 856 180.0
B 0 214 55575 322.96 872 854 169.4
B 12 111 19257 108.61 872 854 169.4
B 0 229 17691 99.37 872 854 169.4
C 14 234 32702 162.42 839 845 196.1
C 12 4 8259 37.8 839 845 196.1
C 13 61 6278 27.7 839 845 196.1
D 12 233 340595 1542.94 835 816 220.2
D 1 52 256321 1160.25 835 816 220.2
D 13 104 64790 290.51 835 816 220.2

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