ASTROSAT CZTI

Data Quality Report

Orbit 29784

Creation date: 2024-06-27T20:07:42.472673
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_291T01_9000004278_29784cztM0_level2.evt modeM0/AS1T03_291T01_9000004278_29784cztM0_level2_quad_clean.evt
Size (bytes)346,786,56063,800,640
Size330.7 MB 60.8 MB
Events in quadrant A2,037,133414,123
Events in quadrant B3,521,407415,510
Events in quadrant C2,256,370396,594
Events in quadrant D2,377,847385,795

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091270
B0138010
C095110
D099360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A455030.065934%
B4550200.439560%
C4551240.527357%
D4551120.263678%

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 4550 4550 0 0 0.00% 0.00%
B 4550 4550 4 4 0.09% 0.09%
C 4551 4551 0 0 0.00% 0.00%
D 4551 4551 11 11 0.24% 0.24%

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 13 254 10455 93.63 527 516 106.2
A 3 137 5311 45.17 527 516 106.2
A 0 226 4287 35.52 527 516 106.2
B 6 159 1347534 13453.33 523 509 100.1
B 0 229 101034 1003.99 523 509 100.1
B 12 111 12310 117.86 523 509 100.1
C 3 233 155133 1280.94 511 515 120.7
C 14 238 84169 693.03 511 515 120.7
C 7 247 14856 118.81 511 515 120.7
D 8 195 362491 2961.51 512 499 122.2
D 13 153 37744 304.71 512 499 122.2
D 2 250 28932 232.61 512 499 122.2

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