ASTROSAT CZTI

Data Quality Report

Orbit 34162

Creation date: 2024-06-27T20:57:16.446559
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/AS1A11_054T07_9000004878_34162cztM0_level2.evt modeM0/AS1A11_054T07_9000004878_34162cztM0_level2_quad_clean.evt
Size (bytes)235,408,32063,204,480
Size224.5 MB 60.3 MB
Events in quadrant A1,399,119427,120
Events in quadrant B1,670,596444,492
Events in quadrant C1,720,794427,154
Events in quadrant D2,130,491398,431

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061491
B068791
C069291
D083841

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A304520.065681%
B3045311.018062%
C3045561.839080%
D3045140.459770%

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 3045 3045 0 0 0.00% 0.00%
B 3045 3045 26 26 0.85% 0.85%
C 3045 3045 36 36 1.18% 1.18%
D 3045 3045 12 12 0.39% 0.39%

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 10474 139.83 358 352 72.4
A 13 254 5465 70.63 358 352 72.4
A 13 6 3856 48.41 358 352 72.4
B 5 172 157056 2253.26 362 354 69.5
B 5 255 38919 554.54 362 354 69.5
B 0 245 20364 287.73 362 354 69.5
C 0 10 209358 2569.42 347 350 81.3
C 15 214 129573 1588.59 347 350 81.3
C 1 128 15805 189.99 347 350 81.3
D 8 195 642578 7633.37 341 331 84.1
D 1 52 35791 421.46 341 331 84.1
D 13 249 32485 382.16 341 331 84.1

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