ASTROSAT CZTI

Data Quality Report

Orbit 29763

Creation date: 2024-06-27T20:07:32.681790
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/AS1T03_291T01_9000004278_29763cztM0_level2.evt modeM0/AS1T03_291T01_9000004278_29763cztM0_level2_quad_clean.evt
Size (bytes)575,971,200111,588,480
Size549.3 MB 106.4 MB
Events in quadrant A3,274,873750,843
Events in quadrant B6,189,473748,032
Events in quadrant C3,362,267718,716
Events in quadrant D4,161,424692,887

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139532
B0228962
C0140442
D0166332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6731340.505126%
B67322714.025550%
C6732931.381462%
D67321131.678550%

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 7591 6731 3 3 0.04% 0.04%
B 7592 6732 64 64 0.84% 0.95%
C 7592 6732 1 1 0.01% 0.01%
D 7592 6732 82 82 1.08% 1.22%

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 0 167 26538 152.66 841 823 168.4
A 13 254 13239 73.71 841 823 168.4
A 0 226 8790 47.3 841 823 168.4
B 6 159 2035945 12898.86 835 815 157.8
B 5 255 494334 3127.97 835 815 157.8
B 0 229 356368 2253.53 835 815 157.8
C 14 238 132552 701.74 808 813 187.7
C 7 247 40277 210.21 808 813 187.7
C 2 114 16059 81.21 808 813 187.7
D 8 195 519297 2730.34 803 783 189.9
D 13 104 226860 1190.45 803 783 189.9
D 2 250 220938 1159.27 803 783 189.9

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