ASTROSAT CZTI

Data Quality Report

Orbit 43271

Creation date: 2024-06-27T22:50:00.072737
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/AS1A06_006T01_9000005860_43271cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43271cztM0_level2_quad_clean.evt
Size (bytes)302,610,24087,937,920
Size288.6 MB 83.9 MB
Events in quadrant A3,050,465582,691
Events in quadrant B2,315,533615,687
Events in quadrant C2,559,247588,341
Events in quadrant D2,888,775527,637

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120552
B0101672
C0104142
D0120102

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4970701.408451%
B4970250.503018%
C4970150.301811%
D49701482.977867%

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 7063 4970 46 46 0.65% 0.93%
B 7063 4971 10 10 0.14% 0.20%
C 7063 4971 11 11 0.16% 0.22%
D 7063 4971 123 123 1.74% 2.47%

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 532787 4531.39 570 559 117.5
A 13 248 214364 1820.34 570 559 117.5
A 15 237 92538 783.11 570 559 117.5
B 5 172 49928 453.61 567 552 108.9
B 5 255 15044 133.13 567 552 108.9
B 12 111 13477 118.74 567 552 108.9
C 15 214 209250 1564.97 569 573 133.3
C 14 254 75266 560.16 569 573 133.3
C 3 233 31939 235.23 569 573 133.3
D 2 249 424461 3128.36 560 545 135.5
D 12 233 145859 1072.37 560 545 135.5
D 13 249 87349 640.58 560 545 135.5

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