ASTROSAT CZTI

Data Quality Report

Orbit 46824

Creation date: 2024-06-27T23:28:08.011205
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/AS1C07_001T10_9000006272_46824cztM0_level2.fits modeM0/AS1C07_001T10_9000006272_46824cztM0_level2_quad_clean.evt
Size (bytes)580,884,480107,354,880
Size554.0 MB 102.4 MB
Events in quadrant A6,964,806683,610
Events in quadrant B5,047,874714,559
Events in quadrant C3,030,257751,609
Events in quadrant D5,951,293642,925

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249762
B0197912
C0138102
D0222433

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65625648.594941%
B65625848.899726%
C6562440.670527%
D65614797.300716%

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 7657 6563 279 279 3.64% 4.25%
B 7657 6563 316 316 4.13% 4.81%
C 7657 6563 16 16 0.21% 0.24%
D 7656 6562 330 330 4.31% 5.03%

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 10 83 3583785 25080.79 699 684 142.9
A 9 191 526140 3678.06 699 684 142.9
A 0 243 53150 367.25 699 684 142.9
B 3 112 1859132 13616.67 711 688 136.5
B 5 32 88585 644.01 711 688 136.5
B 4 171 73564 533.96 711 688 136.5
C 14 254 146973 861.64 731 735 169.7
C 3 233 11255 61.98 731 735 169.7
C 12 250 8117 43.49 731 735 169.7
D 1 52 2129703 12138.09 701 681 175.4
D 13 249 460568 2621.93 701 681 175.4
D 12 128 288493 1640.89 701 681 175.4

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