ASTROSAT CZTI

Data Quality Report

Orbit 16140

Creation date: 2024-06-27T17:18:34.084403
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/AS1T02_092T01_9000002384_16140cztM0_level2.evt modeM0/AS1T02_092T01_9000002384_16140cztM0_level2_quad_clean.evt
Size (bytes)537,592,32092,868,480
Size512.7 MB 88.6 MB
Events in quadrant A3,165,987627,165
Events in quadrant B3,539,351616,642
Events in quadrant C3,621,358578,760
Events in quadrant D5,524,938547,654

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133302
B0144501
C0147561
D0205831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6335961.515391%
B63351322.083662%
C63351342.115233%
D633563710.055249%

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 7516 6337 1 1 0.01% 0.02%
B 7516 6337 26 26 0.35% 0.41%
C 7516 6337 1 1 0.01% 0.02%
D 7516 6337 551 551 7.33% 8.69%

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 0 253 34878 213.23 802 786 159.9
A 15 174 28004 170.23 802 786 159.9
A 13 248 11225 65.29 802 786 159.9
B 5 65 157208 1047.03 789 771 149.4
B 7 220 86686 575.03 789 771 149.4
B 0 189 43847 288.31 789 771 149.4
C 3 233 526475 3002.77 754 762 175.1
C 14 238 116242 659.6 754 762 175.1
C 0 207 22729 125.47 754 762 175.1
D 1 52 2520701 13717.45 758 738 183.7
D 13 11 63629 342.35 758 738 183.7
D 2 234 26873 142.27 758 738 183.7

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