ASTROSAT CZTI

Data Quality Report

Orbit 43015

Creation date: 2024-06-27T22:46:56.457768
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_43015cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43015cztM0_level2_quad_clean.evt
Size (bytes)392,097,600112,504,320
Size373.9 MB 107.3 MB
Events in quadrant A3,679,615775,453
Events in quadrant B3,247,225789,613
Events in quadrant C2,911,123761,469
Events in quadrant D4,216,988667,921

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150002
B0136262
C0122022
D0166522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59021262.134870%
B5903881.490767%
C590360.101643%
D59033085.217686%

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 8888 5903 81 81 0.91% 1.37%
B 8889 5905 52 52 0.58% 0.88%
C 8889 5905 0 0 0.00% 0.00%
D 8889 5905 272 272 3.06% 4.61%

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 601550 4017.25 690 680 149.6
A 15 237 316372 2110.63 690 680 149.6
A 13 248 74030 490.4 690 680 149.6
B 0 186 399215 2794.58 691 676 142.6
B 5 255 75387 523.88 691 676 142.6
B 4 171 32600 223.85 691 676 142.6
C 15 214 254434 1516.91 680 686 167.3
C 12 249 4811 24.66 680 686 167.3
C 13 61 4500 22.8 680 686 167.3
D 12 6 440706 2578.73 658 639 170.7
D 13 249 324484 1897.68 658 639 170.7
D 12 16 203901 1191.08 658 639 170.7

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