ASTROSAT CZTI

Data Quality Report

Orbit 07482

Creation date: 2024-06-27T15:20:25.442770
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_087T04_9000001028_07482cztM0_level2.evt modeM0/AS1G06_087T04_9000001028_07482cztM0_level2_quad_clean.evt
Size (bytes)472,144,32068,673,600
Size450.3 MB 65.5 MB
Events in quadrant A3,214,485411,019
Events in quadrant B3,360,782418,907
Events in quadrant C3,160,230416,211
Events in quadrant D4,135,396393,112

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136373
B0142282
C0134182
D0165622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6305741.173672%
B6305811.284695%
C6305520.824742%
D63052914.615385%

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 7610 6306 2 2 0.03% 0.03%
B 7610 6306 4 4 0.05% 0.06%
C 7610 6306 0 0 0.00% 0.00%
D 7610 6306 193 193 2.54% 3.06%

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 35462 207.74 824 810 166.8
A 0 226 7863 42.28 824 810 166.8
A 12 194 7494 40.07 824 810 166.8
B 0 214 88266 568.45 826 808 153.9
B 0 213 45219 288.66 826 808 153.9
B 12 111 15447 95.15 826 808 153.9
C 13 61 6136 28.68 809 815 185.6
C 8 222 3489 14.41 809 815 185.6
C 1 16 2360 8.33 809 815 185.6
D 1 52 645893 3343.41 796 773 193.0
D 2 152 80141 411.33 796 773 193.0
D 15 47 79654 408.81 796 773 193.0

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