ASTROSAT CZTI

Data Quality Report

Orbit 39413

Creation date: 2024-06-27T22:04:15.308308
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/AS1T05_074T01_9000005472_39413cztM0_level2.fits modeM0/AS1T05_074T01_9000005472_39413cztM0_level2_quad_clean.evt
Size (bytes)578,525,76081,915,840
Size551.7 MB 78.1 MB
Events in quadrant A2,966,367613,778
Events in quadrant B6,172,878469,936
Events in quadrant C3,581,400588,161
Events in quadrant D8,270,964425,552

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123313
B0220602
C0141152
D0283692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5464380.695461%
B5464140925.786969%
C54641602.928258%
D5464157728.861640%

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 7136 5465 21 21 0.29% 0.38%
B 7136 5465 1247 1247 17.47% 22.82%
C 7136 5465 136 136 1.91% 2.49%
D 7136 5465 1527 1527 21.40% 27.94%

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 458825 3758.12 597 584 121.9
A 13 248 185817 1519.13 597 584 121.9
A 13 254 8173 62.24 597 584 121.9
B 6 203 3939087 38109.58 537 521 103.3
B 5 172 92981 894.64 537 521 103.3
B 15 85 18223 171.28 537 521 103.3
C 15 208 714810 5259.57 581 582 135.8
C 14 254 321182 2360.9 581 582 135.8
C 15 214 229143 1683.12 581 582 135.8
D 12 235 5174949 39473.27 534 518 131.1
D 12 227 353116 2689.8 534 518 131.1
D 5 222 265766 2023.45 534 518 131.1

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