ASTROSAT CZTI

Data Quality Report

Orbit 19370

Creation date: 2024-06-27T18:02:09.169267
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/AS1A05_227T03_9000002862_19370cztM0_level2.evt modeM0/AS1A05_227T03_9000002862_19370cztM0_level2_quad_clean.evt
Size (bytes)306,864,00068,875,200
Size292.6 MB 65.7 MB
Events in quadrant A1,607,217478,810
Events in quadrant B1,781,790483,268
Events in quadrant C1,625,904455,562
Events in quadrant D4,030,453410,855

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073911
B078261
C074301
D0145321

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3635100.275103%
B3635391.072902%
C3635310.852820%
D363545612.544704%

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 3635 3635 0 0 0.00% 0.00%
B 3635 3635 14 14 0.39% 0.39%
C 3635 3635 0 0 0.00% 0.00%
D 3635 3635 284 284 7.81% 7.81%

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 5 16 4215 44.93 414 406 84.8
A 13 254 4106 43.65 414 406 84.8
A 4 2 3525 36.79 414 406 84.8
B 6 36 49267 607.46 416 407 80.4
B 4 216 36712 451.37 416 407 80.4
B 15 32 21697 264.69 416 407 80.4
C 14 238 62258 676.73 392 396 91.4
C 3 233 29300 316.19 392 396 91.4
C 13 61 2827 26.59 392 396 91.4
D 10 66 1316744 14421.15 371 361 91.3
D 7 238 677961 7423.2 371 361 91.3
D 1 52 415518 4548.1 371 361 91.3

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