ASTROSAT CZTI

Data Quality Report

Orbit 27705

Creation date: 2024-06-27T19:43:20.976248
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/AS1T03_262T01_9000003988_27705cztM0_level2.evt modeM0/AS1T03_262T01_9000003988_27705cztM0_level2_quad_clean.evt
Size (bytes)459,377,280100,984,320
Size438.1 MB 96.3 MB
Events in quadrant A3,158,603667,610
Events in quadrant B3,407,794682,050
Events in quadrant C3,365,996654,376
Events in quadrant D3,563,972626,611

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131580
B0139600
C0138040
D0146840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6129360.587372%
B6128480.783290%
C6128951.550261%
D6128961.566580%

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 7519 6130 4 4 0.05% 0.07%
B 7518 6128 3 3 0.04% 0.05%
C 7518 6128 0 0 0.00% 0.00%
D 7518 6128 71 71 0.94% 1.16%

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 8 192 14851 86.75 814 801 162.0
A 13 254 10368 59.07 814 801 162.0
A 3 137 7201 39.52 814 801 162.0
B 0 230 162473 1075.8 814 794 150.3
B 0 190 23534 151.31 814 794 150.3
B 12 111 17266 109.6 814 794 150.3
C 14 238 128130 697.11 795 803 182.6
C 3 233 90085 488.82 795 803 182.6
C 15 208 27533 146.35 795 803 182.6
D 1 52 227836 1230.33 787 769 184.6
D 11 176 149487 805.81 787 769 184.6
D 2 250 94359 507.11 787 769 184.6

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