ASTROSAT CZTI

Data Quality Report

Orbit 15530

Creation date: 2024-06-27T17:09:55.413047
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/AS1G08_058T09_9000002300_15530cztM0_level2.evt modeM0/AS1G08_058T09_9000002300_15530cztM0_level2_quad_clean.evt
Size (bytes)611,101,44081,241,920
Size582.8 MB 77.5 MB
Events in quadrant A3,501,786520,097
Events in quadrant B3,587,364522,133
Events in quadrant C3,465,871492,001
Events in quadrant D7,519,069479,476

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141552
B0144941
C0139171
D0265541

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6397671.047366%
B6397851.328748%
C6397791.234954%
D6397144522.588713%

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 7718 6398 0 0 0.00% 0.00%
B 7718 6398 8 8 0.10% 0.13%
C 7718 6399 0 0 0.00% 0.00%
D 7718 6398 1386 1386 17.96% 21.66%

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 0 253 59212 324.87 893 877 179.6
A 0 226 8040 39.89 893 877 179.6
A 12 194 6762 32.77 893 877 179.6
B 15 201 35160 207.7 875 858 165.1
B 0 189 25887 151.55 875 858 165.1
B 4 173 25048 146.47 875 858 165.1
C 14 238 132070 685.22 831 839 191.5
C 3 233 62749 323.26 831 839 191.5
C 0 207 17898 89.07 831 839 191.5
D 1 52 3971990 20527.29 796 772 193.5
D 12 221 346936 1789.33 796 772 193.5
D 5 222 125224 643.29 796 772 193.5

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