ASTROSAT CZTI

Data Quality Report

Orbit 10243

Creation date: 2024-06-27T15:57:11.015031
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/AS1G07_011T03_9000001476_10243cztM0_level2.evt modeM0/AS1G07_011T03_9000001476_10243cztM0_level2_quad_clean.evt
Size (bytes)480,326,40067,968,000
Size458.1 MB 64.8 MB
Events in quadrant A3,078,637404,312
Events in quadrant B3,463,389404,033
Events in quadrant C3,019,703405,152
Events in quadrant D4,533,197380,405

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136085
B0145742
C0135224
D0179222

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6651250.375883%
B6652901.352977%
C6651220.330777%
D6652971.458208%

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 7762 6653 0 0 0.00% 0.00%
B 7762 6653 45 45 0.58% 0.68%
C 7762 6653 0 0 0.00% 0.00%
D 7762 6653 60 60 0.77% 0.90%

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 8 15 10375 59.68 793 777 160.8
A 0 226 7246 40.23 793 777 160.8
A 12 194 6544 35.86 793 777 160.8
B 10 247 130531 851.59 796 778 152.4
B 0 219 111032 723.62 796 778 152.4
B 4 239 78794 512.03 796 778 152.4
C 13 61 5811 28.21 770 775 178.5
C 0 207 5458 26.24 770 775 178.5
C 14 67 5186 24.71 770 775 178.5
D 1 52 688270 3728.69 758 737 184.4
D 8 195 569835 3086.38 758 737 184.4
D 2 152 87526 470.68 758 737 184.4

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