ASTROSAT CZTI

Data Quality Report

Orbit 03304

Creation date: 2024-06-27T14:27:21.998042
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/AS1G05_241T02_9000000448_03304cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03304cztM0_level2_quad_clean.evt
Size (bytes)617,728,32078,992,640
Size589.1 MB 75.3 MB
Events in quadrant A3,604,025470,148
Events in quadrant B6,636,943465,272
Events in quadrant C3,940,395469,159
Events in quadrant D4,004,349450,798

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161831
B0252670
C0171370
D0175970

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77092593.359709%
B77093684.773641%
C77091982.568427%
D77092583.346738%

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 7709 7709 7 7 0.09% 0.09%
B 7709 7709 24 24 0.31% 0.31%
C 7709 7709 55 55 0.71% 0.71%
D 7709 7709 114 114 1.48% 1.48%

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 0 118 41615 212.34 920 897 191.8
A 0 226 13062 63.44 920 897 191.8
A 12 194 9816 46.51 920 897 191.8
B 15 204 2711329 14882.53 920 897 182.1
B 14 167 173980 950.37 920 897 182.1
B 2 249 111450 607.03 920 897 182.1
C 8 208 217867 1015.92 898 898 213.6
C 12 4 149254 694.65 898 898 213.6
C 1 192 57018 262.77 898 898 213.6
D 13 223 467384 2121.84 897 870 219.9
D 5 233 35093 155.65 897 870 219.9
D 13 137 29987 132.43 897 870 219.9

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