ASTROSAT CZTI

Data Quality Report

Orbit 29601

Creation date: 2024-06-27T20:05:54.912897
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/AS1T03_286T01_9000004268_29601cztM0_level2.evt modeM0/AS1T03_286T01_9000004268_29601cztM0_level2_quad_clean.evt
Size (bytes)516,493,440106,188,480
Size492.6 MB 101.3 MB
Events in quadrant A3,062,201702,370
Events in quadrant B3,166,461743,184
Events in quadrant C3,201,417709,686
Events in quadrant D5,799,958636,575

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129803
B0132242
C0133502
D0213412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6072310.510540%
B6072490.806983%
C60721262.075099%
D607278212.878788%

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 7417 6073 0 0 0.00% 0.00%
B 7417 6073 5 5 0.07% 0.08%
C 7417 6073 0 0 0.00% 0.00%
D 7417 6073 670 670 9.03% 11.03%

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 27640 174.85 781 766 153.7
A 13 254 10891 65.88 781 766 153.7
A 3 137 7113 41.3 781 766 153.7
B 0 190 23638 158.2 794 776 144.5
B 12 111 17145 113.27 794 776 144.5
B 15 33 17123 113.12 794 776 144.5
C 14 238 134713 754.41 773 781 177.5
C 3 233 17130 92.09 773 781 177.5
C 2 114 14097 75.01 773 781 177.5
D 7 80 2094758 12284.95 720 702 170.5
D 8 195 408810 2394.2 720 702 170.5
D 7 238 407499 2386.51 720 702 170.5

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