ASTROSAT CZTI

Data Quality Report

Orbit 05668

Creation date: 2024-06-27T14:57:48.450639
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/AS1A02_077T01_9000000732_05668cztM0_level2.evt modeM0/AS1A02_077T01_9000000732_05668cztM0_level2_quad_clean.evt
Size (bytes)1,089,855,360160,905,600
Size1.0 GB 153.5 MB
Events in quadrant A7,481,537942,686
Events in quadrant B8,471,930941,569
Events in quadrant C7,408,703954,897
Events in quadrant D8,531,576901,825

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0374393704
B0402604275
C0372343729
D0425015363

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037244
B037236
C037232
D037254

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232
B0234
C0231
D0244

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16451800.486293%
B164011480.902384%
C16450430.261398%
D162992241.374317%

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 20530 17761 13 13 0.06% 0.07%
B 20530 17756 38 38 0.19% 0.21%
C 20530 17756 0 0 0.00% 0.00%
D 20530 17668 147 147 0.72% 0.83%

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 50 98803 250.4 1890 1848 387.2
A 4 2 41370 102.07 1890 1848 387.2
A 13 6 38344 94.25 1890 1848 387.2
B 5 172 269300 729.76 1905 1857 366.5
B 0 219 219732 594.5 1905 1857 366.5
B 0 214 151718 408.92 1905 1857 366.5
C 1 16 221791 516.89 1829 1834 425.5
C 10 34 21930 47.22 1829 1834 425.5
C 13 61 14617 30.04 1829 1834 425.5
D 2 152 1318292 2966.38 1802 1743 443.8
D 2 136 164753 367.29 1802 1743 443.8
D 7 55 59749 130.7 1802 1743 443.8

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