ASTROSAT CZTI

Data Quality Report

Orbit 30193

Creation date: 2024-06-27T20:12:04.090618
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/AS1A10_071T09_9000004344_30193cztM0_level2.evt modeM0/AS1A10_071T09_9000004344_30193cztM0_level2_quad_clean.evt
Size (bytes)348,626,88048,847,680
Size332.5 MB 46.6 MB
Events in quadrant A2,008,059314,373
Events in quadrant B2,924,772324,327
Events in quadrant C3,047,714297,331
Events in quadrant D2,338,439293,484

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080381
B0107731
C0116221
D092931

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3522712.015900%
B3521812.300483%
C35211414.004544%
D3521631.789264%

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 4772 3523 11 11 0.23% 0.31%
B 4771 3522 0 0 0.00% 0.00%
C 4771 3521 9 9 0.19% 0.26%
D 4771 3522 24 24 0.50% 0.68%

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 0 13 129325 1311.26 483 474 98.3
A 8 192 15201 149.87 483 474 98.3
A 13 254 6203 58.3 483 474 98.3
B 6 159 1036519 11066.83 481 469 93.6
B 12 111 11113 113.69 481 469 93.6
B 11 111 10189 103.82 481 469 93.6
C 3 233 1167113 10876.82 459 463 107.3
C 14 238 76420 708.16 459 463 107.3
C 2 114 8159 71.75 459 463 107.3
D 7 223 206502 1882.61 461 451 109.4
D 8 195 125645 1143.85 461 451 109.4
D 13 104 106854 972.16 461 451 109.4

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