ASTROSAT CZTI

Data Quality Report

Orbit 19166

Creation date: 2024-06-27T17:59:43.166472
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/AS1A05_046T01_9000002838_19166cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19166cztM0_level2_quad_clean.evt
Size (bytes)457,629,12097,770,240
Size436.4 MB 93.2 MB
Events in quadrant A3,152,695623,898
Events in quadrant B3,346,380647,422
Events in quadrant C3,665,560627,751
Events in quadrant D3,250,721606,171

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135852
B0141022
C0149472
D0142542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6538260.397675%
B6538851.300092%
C6538991.514225%
D6538260.397675%

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 7603 6539 0 0 0.00% 0.00%
B 7603 6539 13 13 0.17% 0.20%
C 7603 6539 2 2 0.03% 0.03%
D 7603 6539 13 13 0.17% 0.20%

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 13 254 9381 52.19 815 797 164.5
A 8 205 7833 42.78 815 797 164.5
A 0 226 7017 37.82 815 797 164.5
B 7 220 70084 440.67 822 800 157.2
B 0 190 20228 123.57 822 800 157.2
B 12 111 18689 113.78 822 800 157.2
C 3 233 435128 2321.36 796 803 187.1
C 14 238 122923 652.7 796 803 187.1
C 13 61 5609 25.69 796 803 187.1
D 11 176 124592 634.86 797 773 195.0
D 10 66 94085 478.44 797 773 195.0
D 2 234 27648 137.8 797 773 195.0

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