ASTROSAT CZTI

Data Quality Report

Orbit 34049

Creation date: 2024-06-27T20:55:53.294229
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/AS1A06_003T04_9000004866_34049cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34049cztM0_level2_quad_clean.evt
Size (bytes)1,094,760,00072,400,320
Size1.0 GB 69.0 MB
Events in quadrant A12,211,964241,642
Events in quadrant B9,323,598503,201
Events in quadrant C4,648,919574,981
Events in quadrant D6,611,863493,675

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0399223
B0312972
C0177222
D0234362

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5369463486.310300%
B5369273450.921959%
C53692344.358354%
D5369110020.487987%

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 7102 5369 4469 4469 62.93% 83.24%
B 7101 5368 2604 2604 36.67% 48.51%
C 7102 5370 216 216 3.04% 4.02%
D 7102 5370 1112 1112 15.66% 20.71%

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 15 169 11140713 200235.91 273 268 55.6
A 10 83 10789 189.1 273 268 55.6
A 13 254 4087 68.64 273 268 55.6
B 5 31 3989409 40293.38 520 509 99.0
B 5 15 2030162 20502.29 520 509 99.0
B 5 172 574972 5802.87 520 509 99.0
C 0 10 892552 6375.67 603 608 139.9
C 3 233 542134 3870.86 603 608 139.9
C 0 207 538366 3843.93 603 608 139.9
D 8 230 1424457 10341.39 560 544 137.7
D 2 249 1237180 8981.26 560 544 137.7
D 8 195 734113 5327.66 560 544 137.7

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