ASTROSAT CZTI

Data Quality Report

Orbit 07465

Creation date: 2024-06-27T15:20:05.914118
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_108T01_9000001024_07465cztM0_level2.evt modeM0/AS1A02_108T01_9000001024_07465cztM0_level2_quad_clean.evt
Size (bytes)233,628,48030,588,480
Size222.8 MB 29.2 MB
Events in quadrant A1,635,486170,811
Events in quadrant B1,714,830173,647
Events in quadrant C1,605,918169,263
Events in quadrant D1,879,050163,396

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071351
B072831
C071091
D076211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A350650.142613%
B3506100.285225%
C350630.085568%
D3507130.370687%

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 3506 3506 0 0 0.00% 0.00%
B 3506 3506 2 2 0.06% 0.06%
C 3506 3506 1 1 0.03% 0.03%
D 3507 3507 8 8 0.23% 0.23%

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 12402 140.41 416 406 85.4
A 3 1 10816 121.85 416 406 85.4
A 0 128 6069 66.28 416 406 85.4
B 0 214 72080 882.99 416 405 81.2
B 0 197 8285 97.08 416 405 81.2
B 12 111 7996 93.52 416 405 81.2
C 14 67 11696 119.56 404 406 94.4
C 9 68 10164 103.34 404 406 94.4
C 1 16 6905 68.83 404 406 94.4
D 8 195 114227 1136.77 406 393 100.1
D 12 221 102971 1024.37 406 393 100.1
D 1 52 53593 531.27 406 393 100.1

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