ASTROSAT CZTI

Data Quality Report

Orbit 43029

Creation date: 2024-06-27T22:47:07.463131
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/AS1T05_148T01_9000005838_43029cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43029cztM0_level2_quad_clean.evt
Size (bytes)384,217,920105,405,120
Size366.4 MB 100.5 MB
Events in quadrant A3,277,929747,188
Events in quadrant B4,073,045701,198
Events in quadrant C2,754,730721,266
Events in quadrant D3,681,926631,287

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134242
B0158632
C0116032
D0148802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5589360.644122%
B55894007.156915%
C558950.089461%
D55892714.848810%

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 7053 5590 20 20 0.28% 0.36%
B 7053 5590 292 292 4.14% 5.22%
C 7053 5590 0 0 0.00% 0.00%
D 7053 5590 239 239 3.39% 4.28%

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 600310 4208.58 656 647 142.5
A 15 237 137748 962.21 656 647 142.5
A 13 6 7882 50.78 656 647 142.5
B 5 255 689804 5316.61 639 625 129.6
B 0 186 687154 5296.16 639 625 129.6
B 4 171 69363 530.27 639 625 129.6
C 15 214 246274 1562.86 639 647 157.2
C 15 159 12617 76.16 639 647 157.2
C 13 61 4153 22.31 639 647 157.2
D 13 249 582007 3666.34 618 601 158.6
D 1 52 399296 2514.17 618 601 158.6
D 10 118 130722 820.54 618 601 158.6

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