ASTROSAT CZTI

Data Quality Report

Orbit 42503

Creation date: 2024-06-27T22:40:56.512126
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/AS1C07_001T10_9000005806_42503cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42503cztM0_level2_quad_clean.evt
Size (bytes)323,498,88087,756,480
Size308.5 MB 83.7 MB
Events in quadrant A2,872,639605,740
Events in quadrant B2,380,509610,210
Events in quadrant C2,976,595574,672
Events in quadrant D3,355,961516,653

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115143
B0105682
C0119592
D0133942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4996110.220176%
B4996210.420336%
C4996220.440352%
D49962745.484388%

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 7058 4997 2 2 0.03% 0.04%
B 7058 4997 18 18 0.26% 0.36%
C 7058 4997 14 14 0.20% 0.28%
D 7058 4997 212 212 3.00% 4.24%

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 542284 4680.9 566 555 115.7
A 12 189 94226 809.38 566 555 115.7
A 13 248 24984 211.08 566 555 115.7
B 15 35 114525 1082.87 555 541 105.3
B 0 245 73052 688.87 555 541 105.3
B 12 111 12805 116.51 555 541 105.3
C 0 239 609781 4892.36 537 540 124.5
C 15 214 210597 1686.81 537 540 124.5
C 9 54 46702 370.69 537 540 124.5
D 12 233 421306 3209.68 538 524 131.1
D 12 6 274534 2090.12 538 524 131.1
D 1 52 172117 1308.89 538 524 131.1

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