ASTROSAT CZTI

Data Quality Report

Orbit 06370

Creation date: 2024-06-27T15:06:17.045212
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/AS1A02_124T01_9000000842_06370cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06370cztM0_level2_quad_clean.evt
Size (bytes)491,673,60088,542,720
Size468.9 MB 84.4 MB
Events in quadrant A3,552,917551,971
Events in quadrant B3,563,955558,492
Events in quadrant C3,498,258554,069
Events in quadrant D3,800,721530,076

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148403
B0150902
C0150052
D0158072

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69901752.503577%
B69902052.932761%
C69901472.103004%
D69902193.133047%

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 9310 6993 0 0 0.00% 0.00%
B 9310 6993 23 23 0.25% 0.33%
C 9310 6993 10 10 0.11% 0.14%
D 9310 6993 56 56 0.60% 0.80%

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 15 236 181786 1053.28 855 836 171.8
A 8 15 54100 310.04 855 836 171.8
A 15 174 9535 50.64 855 836 171.8
B 0 219 147229 893.21 859 838 163.9
B 0 228 48403 290.22 859 838 163.9
B 10 246 27972 165.56 859 838 163.9
C 4 254 185070 950.71 838 841 193.8
C 1 241 45397 229.93 838 841 193.8
C 13 61 6550 29.46 838 841 193.8
D 2 63 322050 1592.8 834 809 201.7
D 2 152 148263 731.12 834 809 201.7
D 11 241 77833 381.91 834 809 201.7

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