ASTROSAT CZTI

Data Quality Report

Orbit 13319

Creation date: 2024-06-27T16:39:08.184456
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/AS1A04_101T01_9000001984_13319cztM0_level2.evt modeM0/AS1A04_101T01_9000001984_13319cztM0_level2_quad_clean.evt
Size (bytes)541,552,32094,173,120
Size516.5 MB 89.8 MB
Events in quadrant A3,419,529595,190
Events in quadrant B3,652,976616,183
Events in quadrant C3,475,796599,838
Events in quadrant D5,371,764547,078

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148983
B0154522
C0150442
D0208132

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7085500.705716%
B70851452.046577%
C7085520.733945%
D70855587.875794%

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 8866 7088 0 0 0.00% 0.00%
B 8866 7088 3 3 0.03% 0.04%
C 8866 7088 5 5 0.06% 0.07%
D 8866 7088 317 317 3.58% 4.47%

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 1 162 21845 116.96 876 857 179.5
A 8 15 18597 98.86 876 857 179.5
A 0 226 7934 39.44 876 857 179.5
B 4 173 74119 431.92 884 863 169.6
B 0 230 48885 283.14 884 863 169.6
B 0 214 23174 131.55 884 863 169.6
C 6 96 78377 385.19 859 867 201.2
C 15 208 47210 230.31 859 867 201.2
C 13 61 6229 26.65 859 867 201.2
D 1 52 2048519 10174.81 827 804 201.3
D 2 136 71396 350.76 827 804 201.3
D 8 195 61788 303.02 827 804 201.3

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