ASTROSAT CZTI

Data Quality Report

Orbit 24323

Creation date: 2024-06-27T19:04:46.450892
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/AS1A07_145T01_9000003594_24323cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24323cztM0_level2_quad_clean.evt
Size (bytes)848,401,92089,907,840
Size809.1 MB 85.7 MB
Events in quadrant A3,580,040562,176
Events in quadrant B10,505,819555,084
Events in quadrant C5,550,456542,420
Events in quadrant D5,545,280533,608

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155511
B0366251
C0214891
D0214541

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76051241.630506%
B7605153620.197239%
C76053915.141354%
D76064475.876939%

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 7880 7605 0 0 0.00% 0.00%
B 7880 7605 960 960 12.18% 12.62%
C 7880 7605 134 134 1.70% 1.76%
D 7881 7606 316 316 4.01% 4.15%

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 3 1 26737 138.12 921 899 187.1
A 13 254 11885 58.73 921 899 187.1
A 3 137 8462 40.43 921 899 187.1
B 4 200 6917752 39931.79 887 861 173.2
B 0 219 52391 297.49 887 861 173.2
B 12 17 24155 134.48 887 861 173.2
C 2 16 1034740 5088.86 869 873 203.2
C 7 247 827930 4070.91 869 873 203.2
C 14 238 136485 667.5 869 873 203.2
D 1 52 979097 4541.42 874 846 215.4
D 12 218 592825 2748.19 874 846 215.4
D 7 223 443928 2056.96 874 846 215.4

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