ASTROSAT CZTI

Data Quality Report

Orbit 22565

Creation date: 2024-06-27T18:42:51.976689
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_148T05_9000003346_22565cztM0_level2.evt modeM0/AS1A07_148T05_9000003346_22565cztM0_level2_quad_clean.evt
Size (bytes)513,351,36066,205,440
Size489.6 MB 63.1 MB
Events in quadrant A3,648,736392,368
Events in quadrant B3,724,255396,921
Events in quadrant C3,648,267386,497
Events in quadrant D4,088,196378,658

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149181
B0152961
C0149881
D0165211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6454981.518438%
B64551251.936483%
C64551522.354764%
D64551031.595662%

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 7724 6455 0 0 0.00% 0.00%
B 7725 6456 22 22 0.28% 0.34%
C 7725 6456 0 0 0.00% 0.00%
D 7725 6456 16 16 0.21% 0.25%

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 13 34 91094 492.8 921 906 183.0
A 13 254 11089 55.64 921 906 183.0
A 0 226 8222 39.98 921 906 183.0
B 5 172 64177 376.15 910 891 168.2
B 0 190 24540 140.56 910 891 168.2
B 0 228 23161 132.36 910 891 168.2
C 14 238 144368 690.69 897 907 207.7
C 13 61 6371 26.31 897 907 207.7
C 0 10 4988 19.65 897 907 207.7
D 1 52 379151 1721.38 910 887 219.7
D 7 223 164174 743.07 910 887 219.7
D 13 172 50935 227.75 910 887 219.7

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