ASTROSAT CZTI

Data Quality Report

Orbit 22309

Creation date: 2024-06-27T18:39:20.699962
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/AS1A07_047T09_9000003300_22309cztM0_level2.evt modeM0/AS1A07_047T09_9000003300_22309cztM0_level2_quad_clean.evt
Size (bytes)116,052,48013,285,440
Size110.7 MB 12.7 MB
Events in quadrant A834,86569,528
Events in quadrant B841,43772,722
Events in quadrant C861,32170,388
Events in quadrant D862,82068,376

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035031
B035221
C035311
D036131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16401358.231707%
B16401368.292683%
C16401539.329268%
D16401277.743902%

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 1935 1641 0 0 0.00% 0.00%
B 1935 1641 0 0 0.00% 0.00%
C 1935 1640 0 0 0.00% 0.00%
D 1935 1641 7 7 0.36% 0.43%

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 3 137 1999 38.95 216 210 45.9
A 13 254 1920 37.23 216 210 45.9
A 0 226 1793 34.46 216 210 45.9
B 12 111 4986 109.84 213 207 43.5
B 11 111 4666 102.49 213 207 43.5
B 14 111 4120 89.94 213 207 43.5
C 14 238 33033 641.46 212 212 51.2
C 13 61 1421 23.63 212 212 51.2
C 0 10 542 6.45 212 212 51.2
D 1 52 16770 306.28 216 208 54.1
D 13 104 16494 301.17 216 208 54.1
D 2 120 7367 132.39 216 208 54.1

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