ASTROSAT CZTI

Data Quality Report

Orbit 43707

Creation date: 2024-06-27T22:54:47.889730
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_008T02_9000005900_43707cztM0_level2.fits modeM0/AS1A13_008T02_9000005900_43707cztM0_level2_quad_clean.evt
Size (bytes)704,568,960110,684,160
Size671.9 MB 105.6 MB
Events in quadrant A9,287,403736,593
Events in quadrant B3,879,762787,310
Events in quadrant C5,589,116735,542
Events in quadrant D6,819,862635,654

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0321562
B0156962
C0211162
D0248122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A654371610.942993%
B65442353.591076%
C65444346.632029%
D654487213.325183%

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 7603 6544 146 146 1.92% 2.23%
B 7604 6545 70 70 0.92% 1.07%
C 7604 6545 301 301 3.96% 4.60%
D 7604 6545 589 589 7.75% 9.00%

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 15 222 4289632 26463.89 782 767 162.1
A 10 83 917108 5654.16 782 767 162.1
A 14 63 832801 5133.96 782 767 162.1
B 5 235 405093 2601.08 793 771 155.4
B 4 206 78413 499.49 793 771 155.4
B 5 255 69930 444.91 793 771 155.4
C 3 233 1273497 7115.47 760 766 178.9
C 15 157 1142738 6384.43 760 766 178.9
C 15 158 146620 815.43 760 766 178.9
D 12 33 936836 4846.33 751 728 193.2
D 1 52 423968 2191.16 751 728 193.2
D 5 235 341810 1765.82 751 728 193.2

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