ASTROSAT CZTI

Data Quality Report

Orbit 33578

Creation date: 2024-06-27T20:50:22.801992
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_060T01_9000004808_33578cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33578cztM0_level2_quad_clean.evt
Size (bytes)550,431,36084,957,120
Size524.9 MB 81.0 MB
Events in quadrant A2,807,510571,610
Events in quadrant B4,943,647540,856
Events in quadrant C4,702,460539,944
Events in quadrant D3,836,113527,042

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117133
B0184422
C0180422
D0153392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A561930.053390%
B561962511.122976%
C56192374.217832%
D56201172.081851%

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 7321 5620 0 0 0.00% 0.00%
B 7321 5620 516 516 7.05% 9.18%
C 7321 5620 190 190 2.60% 3.38%
D 7322 5621 106 106 1.45% 1.89%

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 15 169 192708 1404.82 674 661 136.7
A 13 254 10289 70.43 674 661 136.7
A 3 137 6667 43.93 674 661 136.7
B 5 172 2023386 16227.58 645 630 124.6
B 5 255 202614 1620.42 645 630 124.6
B 15 222 87534 697.19 645 630 124.6
C 3 233 1578421 10717.8 634 639 147.2
C 0 10 279811 1896.4 634 639 147.2
C 15 214 237031 1605.8 634 639 147.2
D 8 195 595300 3798.43 640 623 156.6
D 2 250 184680 1175.64 640 623 156.6
D 2 249 173704 1105.54 640 623 156.6

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