ASTROSAT CZTI

Data Quality Report

Orbit 41333

Creation date: 2024-06-27T22:27:43.471970
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/AS1A12_037T01_9000005652_41333cztM0_level2.fits modeM0/AS1A12_037T01_9000005652_41333cztM0_level2_quad_clean.evt
Size (bytes)325,016,64088,133,760
Size310.0 MB 84.1 MB
Events in quadrant A2,893,087594,850
Events in quadrant B2,727,448612,260
Events in quadrant C3,159,838551,692
Events in quadrant D2,828,560530,361

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117043
B0118102
C0126562
D0122382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5417130.239985%
B5417400.738416%
C54172494.596640%
D5417380.701495%

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 7150 5418 4 4 0.06% 0.07%
B 7150 5418 41 41 0.57% 0.76%
C 7150 5418 242 242 3.38% 4.47%
D 7150 5418 48 48 0.67% 0.89%

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 529360 4257.16 601 588 124.2
A 13 248 16836 130.81 601 588 124.2
A 15 235 8938 67.23 601 588 124.2
B 5 255 313857 2686.76 594 577 116.6
B 0 190 53509 453.96 594 577 116.6
B 12 111 15150 124.98 594 577 116.6
C 0 10 708965 5297.09 567 570 133.7
C 15 214 228522 1704.53 567 570 133.7
C 9 54 14013 100.52 567 570 133.7
D 1 52 189864 1323.42 582 566 143.0
D 5 222 124609 867.21 582 566 143.0
D 13 249 123229 857.56 582 566 143.0

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