ASTROSAT CZTI

Data Quality Report

Orbit 33943

Creation date: 2024-06-27T20:54:23.013744
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_046T03_9000004848_33943cztM0_level2.evt modeM0/AS1A11_046T03_9000004848_33943cztM0_level2_quad_clean.evt
Size (bytes)447,174,72074,459,520
Size426.5 MB 71.0 MB
Events in quadrant A2,582,521488,258
Events in quadrant B3,239,567489,072
Events in quadrant C3,180,233471,860
Events in quadrant D4,188,507442,429

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105733
B0126772
C0125942
D0158932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A518150.096506%
B51811573.030303%
C5181821.582706%
D51814107.913530%

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 7155 5182 0 0 0.00% 0.00%
B 7155 5182 98 98 1.37% 1.89%
C 7155 5182 62 62 0.87% 1.20%
D 7155 5182 329 329 4.60% 6.35%

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 14222 103.66 661 650 130.9
A 13 6 9672 68.91 661 650 130.9
A 13 254 8388 59.1 661 650 130.9
B 5 172 581900 4834.85 643 632 120.2
B 4 81 30458 248.09 643 632 120.2
B 4 251 26678 216.64 643 632 120.2
C 0 10 259289 1812.23 626 632 142.7
C 15 214 225138 1572.96 626 632 142.7
C 3 233 132391 923.15 626 632 142.7
D 8 230 477441 3196.16 619 604 149.2
D 8 195 333326 2230.18 619 604 149.2
D 13 249 245635 1642.4 619 604 149.2

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