ASTROSAT CZTI

Data Quality Report

Orbit 07465

Creation date: 2024-06-27T15:20:06.923697
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/AS1G06_116T01_9000001026_07465cztM0_level2.evt modeM0/AS1G06_116T01_9000001026_07465cztM0_level2_quad_clean.evt
Size (bytes)141,068,16039,346,560
Size134.5 MB 37.5 MB
Events in quadrant A989,821263,145
Events in quadrant B997,837267,652
Events in quadrant C973,361263,676
Events in quadrant D1,173,968252,609

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041452
B041271
C041261
D047071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1979502.526529%
B1979422.122284%
C1979391.970692%
D1979623.132895%

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 3019 1979 0 0 0.00% 0.00%
B 3019 1979 0 0 0.00% 0.00%
C 3019 1980 0 0 0.00% 0.00%
D 3019 1979 22 22 0.73% 1.11%

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 15 239 6960 126.93 254 248 52.9
A 3 1 3891 68.89 254 248 52.9
A 0 226 2491 42.42 254 248 52.9
B 0 214 11463 222.6 252 246 50.4
B 12 111 5069 95.71 252 246 50.4
B 11 111 4154 77.55 252 246 50.4
C 9 68 14937 258.02 242 243 56.9
C 1 16 7803 132.75 242 243 56.9
C 14 67 3164 51.29 242 243 56.9
D 1 52 81085 1327.45 242 234 60.9
D 12 221 45295 739.83 242 234 60.9
D 8 195 40674 663.96 242 234 60.9

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