ASTROSAT CZTI

Data Quality Report

Orbit 06088

Creation date: 2024-06-27T15:02:55.632349
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_168T02_9000000790_06088cztM0_level2.evt modeM0/AS1G06_168T02_9000000790_06088cztM0_level2_quad_clean.evt
Size (bytes)153,910,08016,436,160
Size146.8 MB 15.7 MB
Events in quadrant A807,63997,489
Events in quadrant B1,365,874100,431
Events in quadrant C755,82399,951
Events in quadrant D1,627,49488,020

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032664
B050411
C031231
D058915

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A149960.400267%
B150025817.200000%
C150070.466667%
D149923115.410274%

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 1500 1500 0 0 0.00% 0.00%
B 1500 1500 152 152 10.13% 10.13%
C 1500 1500 0 0 0.00% 0.00%
D 1500 1500 153 153 10.20% 10.20%

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 8 15 40924 943.81 199 195 43.2
A 0 226 1954 40.76 199 195 43.2
A 12 194 1868 38.77 199 195 43.2
B 3 64 627493 16453.72 186 181 38.1
B 0 219 8014 205.45 186 181 38.1
B 4 81 5519 140.01 186 181 38.1
C 1 16 5244 108.49 191 192 46.6
C 9 16 2758 55.1 191 192 46.6
C 13 61 1480 27.66 191 192 46.6
D 11 241 902511 19027.52 187 180 47.4
D 5 190 6573 134.81 187 180 47.4
D 2 206 4033 81.25 187 180 47.4

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