ASTROSAT CZTI

Data Quality Report

Orbit 30298

Creation date: 2024-06-27T20:13:22.057832
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/AS1A10_071T17_9000004352_30298cztM0_level2.evt modeM0/AS1A10_071T17_9000004352_30298cztM0_level2_quad_clean.evt
Size (bytes)546,969,60088,200,000
Size521.6 MB 84.1 MB
Events in quadrant A3,301,281570,692
Events in quadrant B5,017,511582,551
Events in quadrant C3,405,086549,377
Events in quadrant D4,407,664521,824

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136732
B0193932
C0140062
D0173202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6397470.734719%
B6397991.547600%
C63971872.923245%
D63973385.283727%

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 7602 6398 3 3 0.04% 0.05%
B 7602 6398 0 0 0.00% 0.00%
C 7602 6398 0 0 0.00% 0.00%
D 7602 6398 262 262 3.45% 4.10%

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 14 239 96629 579.36 825 809 165.4
A 8 192 23789 138.95 825 809 165.4
A 13 254 10997 61.6 825 809 165.4
B 6 159 1766446 11256.49 823 803 156.9
B 12 111 19298 117.91 823 803 156.9
B 0 190 19001 116.02 823 803 156.9
C 14 238 182982 992.89 788 796 183.5
C 14 254 76505 412.6 788 796 183.5
C 3 233 53640 287.99 788 796 183.5
D 13 104 768218 4201.76 772 755 182.7
D 1 52 276332 1508.75 772 755 182.7
D 8 195 127472 693.76 772 755 182.7

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