ASTROSAT CZTI

Data Quality Report

Orbit 19380

Creation date: 2024-06-27T18:02:27.154888
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/AS1C04_009T04_9000002866_19380cztM0_level2.evt modeM0/AS1C04_009T04_9000002866_19380cztM0_level2_quad_clean.evt
Size (bytes)290,108,16045,619,200
Size276.7 MB 43.5 MB
Events in quadrant A1,135,603344,690
Events in quadrant B1,171,446343,120
Events in quadrant C1,115,832316,306
Events in quadrant D5,201,469207,008

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047620
B048830
C047630
D0170590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A235210.042517%
B235320.084998%
C235350.212495%
D2353184178.240544%

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 2352 2352 0 0 0.00% 0.00%
B 2353 2353 0 0 0.00% 0.00%
C 2353 2353 2 2 0.08% 0.08%
D 2352 2352 1754 1754 74.57% 74.57%

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 5 16 4331 67.77 292 287 59.7
A 12 96 3919 60.87 292 287 59.7
A 0 226 2580 38.43 292 287 59.7
B 4 216 21333 389.58 284 278 54.0
B 15 32 19305 352.05 284 278 54.0
B 7 220 6519 115.48 284 278 54.0
C 14 238 44069 691.82 270 271 63.3
C 5 112 14928 231.52 270 271 63.3
C 4 175 3600 52.58 270 271 63.3
D 10 66 3557977 70689.47 202 196 50.3
D 7 238 714125 14185.04 202 196 50.3
D 12 218 98350 1950.22 202 196 50.3

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