ASTROSAT CZTI

Data Quality Report

Orbit 46317

Creation date: 2024-06-27T23:21:38.247000
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_200T01_9000006196_46317cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46317cztM0_level2_quad_clean.evt
Size (bytes)556,462,08098,377,920
Size530.7 MB 93.8 MB
Events in quadrant A9,361,002472,462
Events in quadrant B3,634,071729,532
Events in quadrant C2,881,805698,252
Events in quadrant D4,218,214627,078

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0321161
B0150741
C0135031
D0170261

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6476233236.009883%
B64761792.764052%
C6477460.710205%
D64772684.137718%

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 7341 6477 1739 1739 23.69% 26.85%
B 7341 6477 44 44 0.60% 0.68%
C 7342 6478 8 8 0.11% 0.12%
D 7342 6478 176 176 2.40% 2.72%

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 15 223 4599245 38658.85 572 561 119.0
A 10 83 2274834 19118.68 572 561 119.0
A 15 239 263448 2209.96 572 561 119.0
B 4 171 298795 2070.01 726 704 144.0
B 5 172 208407 1442.34 726 704 144.0
B 3 112 189207 1309.01 726 704 144.0
C 12 2 42350 249.38 710 714 167.0
C 12 249 31733 185.79 710 714 167.0
C 12 250 26732 155.84 710 714 167.0
D 1 52 1001751 5640.45 704 681 177.5
D 13 249 337953 1900.33 704 681 177.5
D 2 249 39462 218.51 704 681 177.5

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