ASTROSAT CZTI

Data Quality Report

Orbit 13643

Creation date: 2024-06-27T16:43:57.482245
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/AS1G08_083T03_9000002022_13643cztM0_level2.evt modeM0/AS1G08_083T03_9000002022_13643cztM0_level2_quad_clean.evt
Size (bytes)308,770,56052,056,000
Size294.5 MB 49.6 MB
Events in quadrant A2,162,395318,688
Events in quadrant B2,278,607321,334
Events in quadrant C2,273,328309,537
Events in quadrant D2,316,649296,876

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A095232
B097631
C096181
D0100541

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4684190.405636%
B4684390.832622%
C4684180.384287%
D4684230.491033%

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 5535 4686 0 0 0.00% 0.00%
B 5535 4686 0 0 0.00% 0.00%
C 5535 4686 3 3 0.05% 0.06%
D 5535 4686 13 13 0.23% 0.28%

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 0 226 4995 38.62 560 547 115.2
A 1 162 4430 33.72 560 547 115.2
A 12 194 4248 32.13 560 547 115.2
B 0 219 64764 583.59 562 548 110.0
B 0 230 14295 124.93 562 548 110.0
B 12 111 12886 112.13 562 548 110.0
C 3 233 126714 987.89 543 544 127.7
C 14 234 30030 230.87 543 544 127.7
C 13 61 3868 26.03 543 544 127.7
D 5 222 94726 722.97 538 522 130.3
D 13 249 77580 591.38 538 522 130.3
D 8 195 69724 531.09 538 522 130.3

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