ASTROSAT CZTI

Data Quality Report

Orbit 33722

Creation date: 2024-06-27T20:51:48.944547
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_086T01_9000004816_33722cztM0_level2.evt modeM0/AS1A11_086T01_9000004816_33722cztM0_level2_quad_clean.evt
Size (bytes)348,333,12055,575,360
Size332.2 MB 53.0 MB
Events in quadrant A1,941,969358,509
Events in quadrant B2,991,540351,424
Events in quadrant C2,244,011353,894
Events in quadrant D3,100,134337,523

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0864
B0875
C0864
D0875

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0181

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08660448
B011805489
C09286471
D012823862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3989190.476310%
B39843979.964859%
C3984471.179719%
D39832345.874969%

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 7115 4001 3 3 0.04% 0.07%
B 7115 3995 314 314 4.41% 7.86%
C 7114 3990 37 37 0.52% 0.93%
D 7115 3993 205 205 2.88% 5.13%

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 34017 341.61 483 474 98.2
A 15 237 25712 257.03 483 474 98.2
A 10 83 8531 82.05 483 474 98.2
B 5 172 1104951 12289.73 461 449 89.9
B 5 255 20525 223.38 461 449 89.9
B 0 190 14447 155.75 461 449 89.9
C 15 214 189436 1721.23 468 471 109.8
C 0 10 188887 1716.23 468 471 109.8
C 14 67 19276 171.29 468 471 109.8
D 2 250 639987 5539.05 460 446 115.5
D 8 195 324833 2809.51 460 446 115.5
D 10 118 100953 870.49 460 446 115.5

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