ASTROSAT CZTI

Data Quality Report

Orbit 48065

Creation date: 2024-08-19T09:24:43.912664
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_024T01_9000006394_48065cztM0_level2.fits modeM0/AS1A13_024T01_9000006394_48065cztM0_level2_quad_clean.evt
Size (bytes)500,457,600108,587,520
Size477.3 MB 103.6 MB
Events in quadrant A7,440,142704,498
Events in quadrant B3,356,596745,663
Events in quadrant C3,311,091706,874
Events in quadrant D3,882,635650,537

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01402
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02705452
B01473710
C01494327
D01619528

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68884196.083043%
B68981221.768629%
C68931371.987524%
D68891742.525766%

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 7793 6898 73 73 0.94% 1.06%
B 7793 6901 13 13 0.17% 0.19%
C 7792 6900 59 59 0.76% 0.86%
D 7792 6897 58 58 0.74% 0.84%

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 10 83 4184325 25732.1 776 759 162.6
A 13 248 166718 1020.77 776 759 162.6
A 0 31 67843 412.62 776 759 162.6
B 7 221 150503 950.16 782 758 157.6
B 5 32 66106 414.64 782 758 157.6
B 0 197 21627 132.42 782 758 157.6
C 12 2 301601 1654.17 768 770 181.9
C 14 254 10861 55.49 768 770 181.9
C 13 61 5207 24.4 768 770 181.9
D 2 249 374406 1938.8 770 747 192.7
D 2 165 162787 840.77 770 747 192.7
D 2 120 122610 632.31 770 747 192.7

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