ASTROSAT CZTI

Data Quality Report

Orbit 03990

Creation date: 2024-06-27T14:36:04.570773
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_247T01_9000000512_03990cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_03990cztM0_level2_quad_clean.evt
Size (bytes)446,146,56096,033,600
Size425.5 MB 91.6 MB
Events in quadrant A4,367,305607,404
Events in quadrant B2,835,767632,436
Events in quadrant C2,679,405629,147
Events in quadrant D3,208,517607,596

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175132
B0127831
C0126621
D0136691

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61815959.626274%
B6181400.647144%
C6181360.582430%
D61811151.860540%

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 7186 6182 357 357 4.97% 5.77%
B 7186 6182 0 0 0.00% 0.00%
C 7186 6182 3 3 0.04% 0.05%
D 7186 6182 62 62 0.86% 1.00%

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 50 1750240 12992.08 663 646 134.7
A 0 118 25128 181.79 663 646 134.7
A 8 15 20740 149.21 663 646 134.7
B 15 204 80098 600.03 693 677 132.4
B 3 0 18098 131.62 693 677 132.4
B 10 16 11445 81.35 693 677 132.4
C 9 144 62869 406.63 659 661 153.0
C 1 16 25218 160.52 659 661 153.0
C 10 65 8219 49.4 659 661 153.0
D 9 82 352533 2232.42 655 634 157.6
D 2 232 169824 1073.33 655 634 157.6
D 1 7 151712 958.43 655 634 157.6

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