ASTROSAT CZTI

Data Quality Report

Orbit 51032

Creation date: 2025-03-05T17:09:52.053681
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/AS1C07_001T02_9000006452_51032cztM0_level2.fits modeM0/AS1C07_001T02_9000006452_51032cztM0_level2_quad_clean.evt
Size (bytes)594,682,56093,562,560
Size567.1 MB 89.2 MB
Events in quadrant A6,439,796622,360
Events in quadrant B6,304,158573,926
Events in quadrant C4,383,041606,542
Events in quadrant D4,364,709561,555

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239302
B0233682
C0178622
D0176832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67244035.993456%
B6724137220.404521%
C67242924.342653%
D67243144.669839%

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 7704 6725 210 210 2.73% 3.12%
B 7704 6725 658 658 8.54% 9.78%
C 7704 6724 183 183 2.38% 2.72%
D 7704 6725 191 191 2.48% 2.84%

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 12 3 1445663 8351.44 708 693 173.0
A 10 253 547376 3159.64 708 693 173.0
A 12 80 438333 2529.41 708 693 173.0
B 12 32 2063725 15516.08 626 606 133.0
B 4 81 953936 7169.7 626 606 133.0
B 5 185 321495 2413.31 626 606 133.0
C 15 157 300505 1590.8 686 679 188.5
C 10 69 261405 1383.35 686 679 188.5
C 15 147 192023 1015.22 686 679 188.5
D 2 216 331185 1726.34 682 657 191.5
D 9 1 211087 1099.07 682 657 191.5
D 15 174 186170 968.93 682 657 191.5

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