ASTROSAT CZTI

Data Quality Report

Orbit 40513

Creation date: 2024-06-27T22:17:01.176154
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/AS1A12_097T02_9000005542_40513cztM0_level2.fits modeM0/AS1A12_097T02_9000005542_40513cztM0_level2_quad_clean.evt
Size (bytes)471,211,200113,160,960
Size449.4 MB 107.9 MB
Events in quadrant A3,850,495779,857
Events in quadrant B3,650,832805,769
Events in quadrant C3,402,978772,400
Events in quadrant D5,985,333573,649

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155303
B0155462
C0143412
D0226332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7106110.154799%
B7106600.844357%
C710640.056290%
D7106155421.868843%

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 10152 7108 3 3 0.03% 0.04%
B 10152 7108 17 17 0.17% 0.24%
C 10152 7108 0 0 0.00% 0.00%
D 10152 7108 761 761 7.50% 10.71%

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 10 83 623457 3785.18 803 788 164.5
A 2 79 53132 318.2 803 788 164.5
A 12 189 42961 256.37 803 788 164.5
B 0 183 156557 997.47 797 776 156.2
B 3 112 140586 895.21 797 776 156.2
B 5 255 81585 517.42 797 776 156.2
C 15 214 309317 1666.61 784 790 185.1
C 9 187 12354 62.47 784 790 185.1
C 10 20 10863 54.41 784 790 185.1
D 12 227 2810524 15916.75 707 687 176.5
D 12 191 202401 1142.64 707 687 176.5
D 2 250 107727 606.34 707 687 176.5

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