ASTROSAT CZTI

Data Quality Report

Orbit 05924

Creation date: 2024-06-27T15:00:54.043769
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/AS1A02_174T01_9000000766_05924cztM0_level2.evt modeM0/AS1A02_174T01_9000000766_05924cztM0_level2_quad_clean.evt
Size (bytes)615,804,48070,453,440
Size587.3 MB 67.2 MB
Events in quadrant A3,557,680405,602
Events in quadrant B4,090,202402,642
Events in quadrant C3,511,237407,048
Events in quadrant D6,961,669375,340

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C031
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01633698
B017486131
C016260124
D026329295

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78092703.457549%
B78013854.935265%
C77981562.000513%
D77765827.484568%

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 7892 7852 0 0 0.00% 0.00%
B 7892 7853 66 66 0.84% 0.84%
C 7892 7853 0 0 0.00% 0.00%
D 7892 7849 342 342 4.33% 4.36%

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 30535 155.99 916 892 190.0
A 0 226 9044 42.9 916 892 190.0
A 12 194 8815 41.69 916 892 190.0
B 15 255 344453 1930.33 924 898 178.0
B 15 204 48088 265.14 924 898 178.0
B 0 214 46527 256.37 924 898 178.0
C 13 61 7272 30.32 899 901 210.1
C 8 222 2672 8.43 899 901 210.1
C 1 16 2373 7.01 899 901 210.1
D 1 20 2854437 13031.34 879 847 219.0
D 8 195 401699 1830.55 879 847 219.0
D 2 152 334814 1525.11 879 847 219.0

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