ASTROSAT CZTI

Data Quality Report

Orbit 09529

Creation date: 2024-06-27T15:47:20.600356
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/AS1G07_049T01_9000001352_09529cztM0_level2.evt modeM0/AS1G07_049T01_9000001352_09529cztM0_level2_quad_clean.evt
Size (bytes)558,852,480146,828,160
Size533.0 MB 140.0 MB
Events in quadrant A4,058,263985,038
Events in quadrant B3,810,963989,521
Events in quadrant C4,400,273960,073
Events in quadrant D4,103,943948,149

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018059420
B017505407
C019404444
D018316430

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01686
B01684
C01682
D01682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81181261.552106%
B81191281.576549%
C81162643.252834%
D8118921.133284%

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 8627 8271 0 0 0.00% 0.00%
B 8628 8263 2 2 0.02% 0.02%
C 8627 8272 106 106 1.23% 1.28%
D 8627 8263 29 29 0.34% 0.35%

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 1 162 197553 1032.86 937 916 190.4
A 1 178 79843 414.57 937 916 190.4
A 1 161 78366 406.81 937 916 190.4
B 0 214 62498 343.3 942 918 179.4
B 4 80 27063 145.75 942 918 179.4
B 0 219 21191 113.02 942 918 179.4
C 4 254 822119 3973.68 894 898 206.7
C 14 234 58279 277.65 894 898 206.7
C 8 128 10863 48.22 894 898 206.7
D 1 52 228236 1030.07 905 875 220.7
D 8 195 185687 837.3 905 875 220.7
D 7 71 116619 524.38 905 875 220.7

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