ASTROSAT CZTI

Data Quality Report

Orbit 43018

Creation date: 2024-06-27T22:46:58.294696
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_43018cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43018cztM0_level2_quad_clean.evt
Size (bytes)698,160,960182,779,200
Size665.8 MB 174.3 MB
Events in quadrant A5,513,9341,288,612
Events in quadrant B6,970,1341,262,417
Events in quadrant C4,907,8801,247,382
Events in quadrant D7,690,3031,054,853

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02020
B02020
C02020
D02020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223792
B0274342
C0202352
D0296432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9825380.386768%
B98254995.078880%
C9825140.142494%
D98257587.715013%

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 11138 9826 14 14 0.13% 0.14%
B 11138 9826 326 326 2.93% 3.32%
C 11138 9826 8 8 0.07% 0.08%
D 11138 9826 600 600 5.39% 6.11%

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 913539 3665.35 1164 1145 248.9
A 15 237 76190 301.48 1164 1145 248.9
A 7 3 16242 60.65 1164 1145 248.9
B 0 186 2223537 9580.33 1144 1120 232.0
B 3 112 110041 469.53 1144 1120 232.0
B 5 255 99575 424.42 1144 1120 232.0
C 15 214 416185 1507.53 1129 1143 275.3
C 0 239 74440 266.23 1129 1143 275.3
C 14 254 8017 24.97 1129 1143 275.3
D 1 52 1503065 5322.95 1089 1056 282.2
D 13 249 978587 3464.26 1089 1056 282.2
D 12 6 491474 1737.98 1089 1056 282.2

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