ASTROSAT CZTI

Data Quality Report

Orbit 13006

Creation date: 2024-06-27T16:34:59.805194
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/AS1T02_002T01_9000001914_13006cztM0_level2.evt modeM0/AS1T02_002T01_9000001914_13006cztM0_level2_quad_clean.evt
Size (bytes)1,126,229,760238,340,160
Size1.0 GB 227.3 MB
Events in quadrant A6,910,1971,628,050
Events in quadrant B11,317,7381,459,497
Events in quadrant C6,099,9781,664,356
Events in quadrant D8,868,5601,535,027

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295624
B0428093
C0275613
D0356003

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02760
B02760
C02760
D02760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134771951.446910%
B13477242217.971359%
C13477680.504563%
D134777755.750538%

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 15363 13481 99 99 0.64% 0.73%
B 15363 13480 1405 1405 9.15% 10.42%
C 15363 13481 7 7 0.05% 0.05%
D 15363 13481 649 649 4.22% 4.81%

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 13 248 314250 994.31 1561 1525 314.5
A 12 189 152946 481.44 1561 1525 314.5
A 15 223 147017 462.59 1561 1525 314.5
B 4 239 4887355 18497.09 1401 1363 264.1
B 3 64 400070 1509.4 1401 1363 264.1
B 0 219 161822 607.45 1401 1363 264.1
C 0 207 83921 234.66 1540 1545 351.0
C 13 61 11193 27.48 1540 1545 351.0
C 14 234 9865 23.7 1540 1545 351.0
D 1 52 3157530 8972.41 1480 1437 351.8
D 2 234 47413 130.7 1480 1437 351.8
D 8 195 45272 124.62 1480 1437 351.8

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