ASTROSAT CZTI

Data Quality Report

Orbit 34409

Creation date: 2022-02-08T01:19:01.446184
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/AS1A05_103T01_9000004912_34409cztM0_level2.evt modeM0/AS1A05_103T01_9000004912_34409cztM0_level2_quad_clean.evt
Size (bytes)236,943,36047,750,400
Size226.0 MB 45.5 MB
Events in quadrant A1,258,620319,463
Events in quadrant B1,625,562327,502
Events in quadrant C1,422,197327,888
Events in quadrant D2,697,848291,027

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053991
B064391
C057071
D098391

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A250330.119856%
B25031234.914103%
C2503351.398322%
D250325210.067918%

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 2503 2503 0 0 0.00% 0.00%
B 2503 2503 73 73 2.92% 2.92%
C 2503 2503 21 21 0.84% 0.84%
D 2503 2503 218 218 8.71% 8.71%

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 15 223 22869 358.82 310 305 62.9
A 10 83 17709 276.77 310 305 62.9
A 13 6 7620 116.33 310 305 62.9
B 5 172 348533 5919.16 308 301 58.8
B 0 190 25261 424.26 308 301 58.8
B 0 229 20862 349.49 308 301 58.8
C 15 214 105870 1457.86 311 314 72.4
C 0 10 80263 1104.2 311 314 72.4
C 14 67 12710 171.2 311 314 72.4
D 7 80 665759 8220.48 292 288 81.0
D 1 52 391428 4831.7 292 288 81.0
D 8 195 301204 3717.18 292 288 81.0

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