ASTROSAT CZTI

Data Quality Report

Orbit 32947

Creation date: 2024-06-27T20:43:46.040473
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_005T01_9000004748_32947cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32947cztM0_level2_quad_clean.evt
Size (bytes)538,326,720102,528,000
Size513.4 MB 97.8 MB
Events in quadrant A2,451,842713,892
Events in quadrant B3,392,194717,987
Events in quadrant C2,618,868721,658
Events in quadrant D7,489,390587,921

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105763
B0133832
C0109902
D0259252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5184160.308642%
B51843126.018519%
C5184360.694444%
D5184112821.759259%

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 7306 5185 6 6 0.08% 0.12%
B 7306 5185 192 192 2.63% 3.70%
C 7306 5185 28 28 0.38% 0.54%
D 7306 5185 992 992 13.58% 19.13%

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 0 191 41432 327.36 616 605 124.7
A 0 253 10165 76.65 616 605 124.7
A 14 238 9640 72.44 616 605 124.7
B 5 172 813037 7156.14 610 597 113.5
B 0 219 49638 431.96 610 597 113.5
B 0 230 31387 271.2 610 597 113.5
C 0 10 139033 990.13 613 619 139.8
C 15 159 25013 174.5 613 619 139.8
C 1 241 24064 167.71 613 619 139.8
D 8 195 2109620 14890.43 544 531 141.6
D 7 80 1674372 11817.53 544 531 141.6
D 12 218 451164 3181.53 544 531 141.6

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