ASTROSAT CZTI

Data Quality Report

Orbit 11066

Creation date: 2024-06-27T16:07:48.002337
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/AS1A04_053T04_9000001614_11066cztM0_level2.evt modeM0/AS1A04_053T04_9000001614_11066cztM0_level2_quad_clean.evt
Size (bytes)398,649,60067,017,600
Size380.2 MB 63.9 MB
Events in quadrant A2,927,876414,878
Events in quadrant B3,403,904411,054
Events in quadrant C2,504,149408,231
Events in quadrant D2,846,637393,732

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130557
B0140703
C0116357
D0125663

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5742290.505051%
B57431873.256138%
C574160.104511%
D5743460.800975%

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 6484 5745 0 0 0.00% 0.00%
B 6484 5744 77 77 1.19% 1.34%
C 6484 5745 0 0 0.00% 0.00%
D 6484 5745 30 30 0.46% 0.52%

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 15 174 389873 2868.21 657 643 135.7
A 11 29 9595 65.97 657 643 135.7
A 0 226 5926 38.93 657 643 135.7
B 4 239 759844 5989.88 655 637 126.7
B 0 214 33398 258.47 655 637 126.7
B 15 204 24127 185.33 655 637 126.7
C 8 128 8152 50.3 638 641 149.3
C 13 61 4762 27.6 638 641 149.3
C 8 112 4552 26.19 638 641 149.3
D 11 129 188147 1240.07 631 614 151.2
D 10 253 100668 661.61 631 614 151.2
D 1 52 38833 252.72 631 614 151.2

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