ASTROSAT CZTI

Data Quality Report

Orbit 07149

Creation date: 2024-06-27T15:16:10.893068
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/AS1G06_029T02_9000000974_07149cztM0_level2.evt modeM0/AS1G06_029T02_9000000974_07149cztM0_level2_quad_clean.evt
Size (bytes)443,332,80089,072,640
Size422.8 MB 84.9 MB
Events in quadrant A3,106,721564,772
Events in quadrant B3,128,932584,215
Events in quadrant C2,986,482567,407
Events in quadrant D3,765,879531,098

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134272
B0134461
C0132321
D0154201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6452280.433974%
B6452350.542467%
C6452210.325480%
D6452931.441414%

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 7747 6453 2 2 0.03% 0.03%
B 7747 6452 1 1 0.01% 0.02%
C 7747 6453 1 1 0.01% 0.02%
D 7747 6453 59 59 0.76% 0.91%

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 15 174 52850 331.87 780 767 156.9
A 13 248 25444 157.24 780 767 156.9
A 8 15 20740 127.27 780 767 156.9
B 0 214 32553 212.33 789 771 149.7
B 0 219 28845 187.56 789 771 149.7
B 12 111 14904 94.42 789 771 149.7
C 4 254 28333 159.33 755 759 173.1
C 10 22 8559 45.07 755 759 173.1
C 13 61 6065 30.66 755 759 173.1
D 2 216 603778 3305.72 747 722 182.4
D 8 195 186625 1019.05 747 722 182.4
D 2 14 146155 797.21 747 722 182.4

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