ASTROSAT CZTI

Data Quality Report

Orbit 10861

Creation date: 2024-06-27T16:04:50.936311
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_118T01_9000001570_10861cztM0_level2.evt modeM0/AS1A03_118T01_9000001570_10861cztM0_level2_quad_clean.evt
Size (bytes)642,026,88093,686,400
Size612.3 MB 89.3 MB
Events in quadrant A6,181,243557,310
Events in quadrant B4,980,966584,516
Events in quadrant C3,437,807596,155
Events in quadrant D4,321,341562,406

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237093
B0199252
C0159422
D0180412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A770578910.240104%
B77054726.125892%
C7705891.155094%
D77051471.907852%

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 8245 7707 398 398 4.83% 5.16%
B 8245 7707 212 212 2.57% 2.75%
C 8245 7707 0 0 0.00% 0.00%
D 8245 7707 66 66 0.80% 0.86%

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 2569517 14550.14 864 845 176.5
A 15 223 159492 898.65 864 845 176.5
A 15 239 67639 378.35 864 845 176.5
B 4 239 1324548 7598.6 894 870 174.2
B 15 255 37856 212.32 894 870 174.2
B 0 214 35639 199.59 894 870 174.2
C 8 208 7932 34.35 877 880 205.3
C 13 61 6720 28.45 877 880 205.3
C 14 234 3574 13.12 877 880 205.3
D 8 195 393312 1856.26 868 842 211.4
D 1 52 325210 1534.16 868 842 211.4
D 7 71 64198 299.65 868 842 211.4

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