ASTROSAT CZTI

Data Quality Report

Orbit 44260

Creation date: 2024-06-27T23:01:07.335709
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/AS1A13_080T05_9000005980_44260cztM0_level2.fits modeM0/AS1A13_080T05_9000005980_44260cztM0_level2_quad_clean.evt
Size (bytes)580,610,880113,532,480
Size553.7 MB 108.3 MB
Events in quadrant A7,496,913703,528
Events in quadrant B4,628,761791,473
Events in quadrant C3,471,512760,483
Events in quadrant D5,328,856673,754

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0276842
B0188702
C0157883
D0209702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A730492912.719058%
B73042122.902519%
C7303730.999589%
D73033775.162262%

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 7674 7305 501 501 6.53% 6.86%
B 7674 7305 47 47 0.61% 0.64%
C 7673 7304 29 29 0.38% 0.40%
D 7673 7304 294 294 3.83% 4.03%

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 15 223 2484153 15744.81 754 738 157.7
A 10 83 1853685 11747.65 754 738 157.7
A 7 3 124693 785.87 754 738 157.7
B 0 189 227367 1469.12 792 770 154.2
B 4 170 218494 1411.59 792 770 154.2
B 4 173 211562 1366.65 792 770 154.2
C 14 254 186457 1025.43 771 773 181.1
C 3 233 128094 703.12 771 773 181.1
C 4 254 93580 512.52 771 773 181.1
D 13 171 853452 4419.75 759 732 192.9
D 12 233 297136 1536.3 759 732 192.9
D 1 52 269549 1393.31 759 732 192.9

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