ASTROSAT CZTI

Data Quality Report

Orbit 47263

Creation date: 2024-10-16T01:00:44.635310
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/AS1C09_008T04_9000006308_47263cztM0_level2.fits modeM0/AS1C09_008T04_9000006308_47263cztM0_level2_quad_clean.evt
Size (bytes)215,772,48031,567,680
Size205.8 MB 30.1 MB
Events in quadrant A2,231,742210,072
Events in quadrant B1,345,797224,951
Events in quadrant C1,081,733225,812
Events in quadrant D3,161,351140,890

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093071046
B05867432
C05197401
D0133202502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0484
B0482
C0484
D0482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21121969.280303%
B21651778.175520%
C2172221.012891%
D201866733.052527%

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 2375 2220 1 1 0.04% 0.05%
B 2375 2259 11 11 0.46% 0.49%
C 2375 2273 1 1 0.04% 0.04%
D 2375 2156 447 447 18.82% 20.73%

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 10 83 1049529 17864.95 269 262 58.7
A 9 191 125436 2131.23 269 262 58.7
A 13 248 12372 206.19 269 262 58.7
B 0 200 217627 3721.6 271 261 58.4
B 5 32 18572 313.51 271 261 58.4
B 0 198 13548 227.49 271 261 58.4
C 14 254 35589 533.41 268 267 66.2
C 13 61 1833 23.65 268 267 66.2
C 3 233 818 8.32 268 267 66.2
D 6 112 2223934 37880.38 227 218 58.7
D 2 249 24255 409.46 227 218 58.7
D 12 233 19667 331.31 227 218 58.7

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