ASTROSAT CZTI

Data Quality Report

Orbit 10017

Creation date: 2024-06-27T15:53:47.471628
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/AS1G07_022T02_9000001434_10017cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10017cztM0_level2_quad_clean.evt
Size (bytes)434,016,00089,320,320
Size413.9 MB 85.2 MB
Events in quadrant A2,903,799566,674
Events in quadrant B3,264,068580,690
Events in quadrant C2,835,234578,350
Events in quadrant D3,714,471541,331

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01302745
B01400660
C01297073
D01511398

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01282
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6290600.953895%
B62871021.622395%
C6277270.430142%
D6277831.322288%

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 8950 6311 0 0 0.00% 0.00%
B 8950 6310 16 16 0.18% 0.25%
C 8950 6311 0 0 0.00% 0.00%
D 8950 6311 38 38 0.42% 0.60%

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 8 15 26766 172.76 742 728 150.7
A 13 251 10565 65.27 742 728 150.7
A 15 239 9835 60.42 742 728 150.7
B 4 81 141100 989.17 753 735 141.9
B 4 239 64380 448.51 753 735 141.9
B 0 219 55954 389.14 753 735 141.9
C 14 67 6502 34.47 725 729 167.5
C 13 61 5596 29.06 725 729 167.5
C 8 222 3008 13.61 725 729 167.5
D 8 195 439491 2446.6 706 687 179.4
D 2 16 303321 1687.37 706 687 179.4
D 10 199 85903 475.13 706 687 179.4

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