ASTROSAT CZTI

Data Quality Report

Orbit 43743

Creation date: 2024-06-27T22:55:15.357793
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/AS1A13_003T01_9000005902_43743cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43743cztM0_level2_quad_clean.evt
Size (bytes)1,003,063,680198,797,760
Size956.6 MB 189.6 MB
Events in quadrant A10,093,6511,284,572
Events in quadrant B8,577,0601,315,928
Events in quadrant C7,551,4971,329,588
Events in quadrant D9,907,3471,195,320

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02600
B02600
C02600
D02600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0385052
B0344102
C0315473
D0385882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129339987.716694%
B129338316.425423%
C129324673.611197%
D129326214.802041%

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 14073 12935 773 773 5.49% 5.98%
B 14073 12935 552 552 3.92% 4.27%
C 14072 12934 317 317 2.25% 2.45%
D 14072 12934 457 457 3.25% 3.53%

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 15 174 2101180 7300.29 1387 1358 287.6
A 10 83 1561895 5425.4 1387 1358 287.6
A 15 223 470551 1631.21 1387 1358 287.6
B 5 235 1725551 6268.44 1390 1348 275.1
B 0 200 850483 3087.08 1390 1348 275.1
B 5 172 189635 684.53 1390 1348 275.1
C 15 174 799587 2439.84 1386 1393 327.2
C 15 158 662378 2020.43 1386 1393 327.2
C 3 233 303271 922.75 1386 1393 327.2
D 1 52 830037 2205.28 1371 1342 375.8
D 7 80 548492 1456.05 1371 1342 375.8
D 5 235 533019 1414.87 1371 1342 375.8

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