ASTROSAT CZTI

Data Quality Report

Orbit 05584

Creation date: 2024-06-27T14:56:54.123074
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_081T01_9000000720_05584cztM0_level2.evt modeM0/AS1A02_081T01_9000000720_05584cztM0_level2_quad_clean.evt
Size (bytes)431,277,12067,268,160
Size411.3 MB 64.2 MB
Events in quadrant A3,093,703408,888
Events in quadrant B3,286,637410,603
Events in quadrant C2,974,087391,568
Events in quadrant D3,265,207372,703

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134473
B0137132
C0132582
D0139302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6493610.939473%
B6493600.924072%
C6493320.492838%
D6493681.047282%

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 7613 6494 3 3 0.04% 0.05%
B 7613 6494 1 1 0.01% 0.02%
C 7613 6494 0 0 0.00% 0.00%
D 7613 6494 22 22 0.29% 0.34%

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 14 111 33010 200.01 789 772 161.2
A 13 6 12333 71.73 789 772 161.2
A 12 194 7567 42.16 789 772 161.2
B 11 51 71119 465.23 794 777 151.2
B 15 204 62816 410.32 794 777 151.2
B 10 246 21409 136.46 794 777 151.2
C 1 16 24885 139.06 752 757 173.5
C 13 61 6154 31.11 752 757 173.5
C 8 128 5191 25.56 752 757 173.5
D 11 241 141250 766.12 753 731 183.4
D 2 152 63238 340.79 753 731 183.4
D 8 195 47703 256.1 753 731 183.4

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