ASTROSAT CZTI

Data Quality Report

Orbit 43709

Creation date: 2024-06-27T22:54:50.556113
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_43709cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43709cztM0_level2_quad_clean.evt
Size (bytes)453,519,36072,311,040
Size432.5 MB 69.0 MB
Events in quadrant A5,633,180454,892
Events in quadrant B2,490,534519,895
Events in quadrant C3,274,044484,331
Events in quadrant D5,033,880407,630

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199451
B0104361
C0129131
D0181621

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A458761913.494659%
B45871433.117506%
C45873287.150643%
D458771815.652932%

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 4992 4588 256 256 5.13% 5.58%
B 4992 4588 23 23 0.46% 0.50%
C 4992 4588 211 211 4.23% 4.60%
D 4992 4588 460 460 9.21% 10.03%

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 15 222 2191693 19817.49 522 510 110.6
A 10 83 512529 4630.8 522 510 110.6
A 15 192 465707 4207.33 522 510 110.6
B 5 235 198682 1814.73 543 527 109.2
B 12 3 41677 376.86 543 527 109.2
B 10 245 25250 226.42 543 527 109.2
C 15 157 1121464 8881.35 526 528 126.2
C 3 233 26797 208.13 526 528 126.2
C 14 254 21293 164.52 526 528 126.2
D 8 48 500173 3738.48 514 496 133.7
D 12 33 485817 3631.07 514 496 133.7
D 1 52 409354 3058.99 514 496 133.7

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