ASTROSAT CZTI

Data Quality Report

Orbit 26416

Creation date: 2024-06-27T19:28:44.416593
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/AS1A09_127T02_9000003818_26416cztM0_level2.evt modeM0/AS1A09_127T02_9000003818_26416cztM0_level2_quad_clean.evt
Size (bytes)501,940,800101,750,400
Size478.7 MB 97.0 MB
Events in quadrant A3,089,951674,890
Events in quadrant B3,273,534704,416
Events in quadrant C3,525,475664,550
Events in quadrant D4,904,845617,956

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129490
B0134960
C0142950
D0187610

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6009220.366117%
B6009320.532535%
C60091382.296555%
D60094828.021301%

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 7404 6010 0 0 0.00% 0.00%
B 7404 6010 5 5 0.07% 0.08%
C 7404 6010 46 46 0.62% 0.77%
D 7404 6010 382 382 5.16% 6.36%

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 15 192 13690 81.58 796 782 158.2
A 13 254 11086 65.12 796 782 158.2
A 0 226 7011 39.37 796 782 158.2
B 0 244 67873 453.89 808 787 147.8
B 14 207 16616 107.09 808 787 147.8
B 12 111 16321 105.1 808 787 147.8
C 2 16 249053 1380.6 779 787 179.8
C 14 238 125146 691.56 779 787 179.8
C 3 233 67260 369.66 779 787 179.8
D 1 52 1469998 8260.59 754 736 177.9
D 7 80 184189 1031.42 754 736 177.9
D 12 233 163989 917.85 754 736 177.9

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