ASTROSAT CZTI

Data Quality Report

Orbit 13263

Creation date: 2024-06-27T16:38:32.199158
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/AS1G08_077T01_9000001970_13263cztM0_level2.evt modeM0/AS1G08_077T01_9000001970_13263cztM0_level2_quad_clean.evt
Size (bytes)793,393,92096,059,520
Size756.6 MB 91.6 MB
Events in quadrant A10,999,034400,060
Events in quadrant B5,670,209607,718
Events in quadrant C3,430,854702,253
Events in quadrant D3,419,053674,532

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0378162
B0221091
C0155411
D0158321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7511335144.614565%
B7511129217.201438%
C7511740.985222%
D75111071.424577%

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 7541 7511 3059 3059 40.56% 40.73%
B 7542 7512 634 634 8.41% 8.44%
C 7542 7513 4 4 0.05% 0.05%
D 7542 7513 40 40 0.53% 0.53%

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 15 239 8767374 75800.83 569 557 115.7
A 1 162 16020 133.7 569 557 115.7
A 8 15 7429 59.42 569 557 115.7
B 4 239 2616549 17700.18 770 750 147.8
B 12 111 17263 111.74 770 750 147.8
B 11 111 14540 93.31 770 750 147.8
C 3 233 59424 299.63 843 846 195.5
C 6 96 41812 209.54 843 846 195.5
C 15 208 17616 85.78 843 846 195.5
D 13 104 78553 387.74 835 807 200.5
D 5 222 70744 348.8 835 807 200.5
D 8 195 41384 202.37 835 807 200.5

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