ASTROSAT CZTI

Data Quality Report

Orbit 06744

Creation date: 2024-06-27T15:11:05.939594
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/AS1G06_068T01_9000000930_06744cztM0_level2.evt modeM0/AS1G06_068T01_9000000930_06744cztM0_level2_quad_clean.evt
Size (bytes)283,582,08057,225,600
Size270.4 MB 54.6 MB
Events in quadrant A1,911,514376,785
Events in quadrant B1,858,460380,000
Events in quadrant C1,755,281371,523
Events in quadrant D2,803,948336,251

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082751
B081451
C078031
D0110241

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3790150.395778%
B3790190.501319%
C379030.079156%
D37903629.551451%

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 3790 3790 10 10 0.26% 0.26%
B 3790 3790 0 0 0.00% 0.00%
C 3790 3790 0 0 0.00% 0.00%
D 3790 3790 321 321 8.47% 8.47%

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 4 2 91968 1003.93 449 441 91.2
A 13 251 54658 594.69 449 441 91.2
A 8 15 26628 287.24 449 441 91.2
B 0 214 21773 244.8 457 447 87.1
B 4 142 18041 201.96 457 447 87.1
B 4 81 15212 169.49 457 447 87.1
C 9 247 18458 174.54 440 444 103.2
C 9 16 9370 86.49 440 444 103.2
C 12 4 5676 50.69 440 444 103.2
D 2 33 1007410 9916.72 417 406 101.5
D 8 195 136520 1340.42 417 406 101.5
D 2 152 24769 239.92 417 406 101.5

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