ASTROSAT CZTI

Data Quality Report

Orbit 30407

Creation date: 2024-06-27T20:14:50.874301
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_019T04_9000004376_30407cztM0_level2.evt modeM0/AS1C05_019T04_9000004376_30407cztM0_level2_quad_clean.evt
Size (bytes)539,513,28088,312,320
Size514.5 MB 84.2 MB
Events in quadrant A3,569,933562,335
Events in quadrant B5,305,307561,736
Events in quadrant C3,414,194541,229
Events in quadrant D3,590,711536,980

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149621
B0206681
C0142891
D0148542

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67771632.405194%
B67781171.726173%
C67781221.799941%
D67771011.490335%

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 7726 6776 75 75 0.97% 1.11%
B 7728 6778 12 12 0.16% 0.18%
C 7728 6778 31 31 0.40% 0.46%
D 7727 6777 53 53 0.69% 0.78%

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 338939 2043.04 830 815 165.5
A 13 254 14240 81.12 830 815 165.5
A 8 192 13346 75.72 830 815 165.5
B 6 159 1863019 11919.75 820 799 156.2
B 0 229 158498 1009.4 820 799 156.2
B 15 33 25055 155.26 820 799 156.2
C 15 208 166353 906.37 789 793 182.7
C 14 238 128263 697.84 789 793 182.7
C 3 233 28656 152.54 789 793 182.7
D 13 249 178954 859.8 796 781 207.2
D 8 195 160014 768.41 796 781 207.2
D 2 250 126526 606.8 796 781 207.2

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