ASTROSAT CZTI

Data Quality Report

Orbit 24244

Creation date: 2024-06-27T19:03:54.223389
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_118T01_9000003586_24244cztM0_level2.evt modeM0/AS1A07_118T01_9000003586_24244cztM0_level2_quad_clean.evt
Size (bytes)497,603,520114,802,560
Size474.6 MB 109.5 MB
Events in quadrant A3,374,856766,435
Events in quadrant B3,345,939799,361
Events in quadrant C3,447,701761,882
Events in quadrant D4,481,485716,994

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139042
B0138052
C0141082
D0174842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6194560.904101%
B6194450.726510%
C6194921.485308%
D61942073.341944%

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 7544 6195 19 19 0.25% 0.31%
B 7544 6194 2 2 0.03% 0.03%
C 7544 6194 12 12 0.16% 0.19%
D 7544 6195 185 185 2.45% 2.99%

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 6 16 135176 800.79 840 824 167.8
A 13 254 11002 60.66 840 824 167.8
A 0 226 7124 37.55 840 824 167.8
B 12 111 18445 111.87 850 832 157.4
B 11 111 15938 95.94 850 832 157.4
B 14 111 14129 84.45 850 832 157.4
C 14 238 131064 683.37 824 833 190.6
C 2 16 62362 322.87 824 833 190.6
C 7 247 28897 147.26 824 833 190.6
D 8 195 835087 4224.16 813 791 197.5
D 1 52 529442 2676.64 813 791 197.5
D 1 239 30383 149.83 813 791 197.5

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