ASTROSAT CZTI

Data Quality Report

Orbit 46229

Creation date: 2024-06-27T23:20:33.925361
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_065T03_9000006186_46229cztM0_level2.fits modeM0/AS1A13_065T03_9000006186_46229cztM0_level2_quad_clean.evt
Size (bytes)222,474,24014,224,320
Size212.2 MB 13.6 MB
Events in quadrant A2,983,49561,923
Events in quadrant B1,970,11362,056
Events in quadrant C1,468,49357,731
Events in quadrant D1,599,47753,832

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110291
B078191
C060861
D064461

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A27292448.941004%
B2729562.052034%
C2729552.015390%
D2729933.407842%

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 2729 2729 91 91 3.33% 3.33%
B 2729 2729 10 10 0.37% 0.37%
C 2729 2729 29 29 1.06% 1.06%
D 2729 2729 60 60 2.20% 2.20%

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 1491783 21069.38 336 329 70.8
A 0 247 164930 2325.28 336 329 70.8
A 0 226 11193 153.47 336 329 70.8
B 3 112 478209 7001.22 340 331 68.3
B 10 246 90505 1321.11 340 331 68.3
B 5 172 13810 197.48 340 331 68.3
C 12 2 141241 1763.57 334 336 79.9
C 1 3 23323 287.71 334 336 79.9
C 13 61 2277 24.29 334 336 79.9
D 13 249 156216 1828.46 335 325 85.3
D 5 235 55237 644.07 335 325 85.3
D 5 171 30900 358.62 335 325 85.3

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