ASTROSAT CZTI

Data Quality Report

Orbit 23697

Creation date: 2024-06-27T18:57:38.615050
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/AS1C05_012T03_9000003500_23697cztM0_level2.evt modeM0/AS1C05_012T03_9000003500_23697cztM0_level2_quad_clean.evt
Size (bytes)448,148,160109,906,560
Size427.4 MB 104.8 MB
Events in quadrant A3,078,218719,477
Events in quadrant B3,239,832742,110
Events in quadrant C3,135,053714,784
Events in quadrant D3,662,765684,503

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137132
B0140092
C0137772
D0155162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6711130.193712%
B6711280.417225%
C6711520.774847%
D67111121.668902%

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 7801 6712 0 0 0.00% 0.00%
B 7801 6712 1 1 0.01% 0.01%
C 7801 6712 1 1 0.01% 0.01%
D 7801 6712 97 97 1.24% 1.45%

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 13 254 11180 65.82 796 780 158.0
A 10 253 7769 44.23 796 780 158.0
A 3 137 6866 38.52 796 780 158.0
B 0 183 54791 362.01 801 782 149.2
B 12 111 18109 116.14 801 782 149.2
B 11 111 16203 103.36 801 782 149.2
C 14 238 124810 700.56 770 774 177.1
C 13 61 5259 25.33 770 774 177.1
C 10 23 4784 22.65 770 774 177.1
D 13 174 434444 2342.47 763 739 185.1
D 1 52 229670 1236.47 763 739 185.1
D 9 35 71380 381.53 763 739 185.1

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