ASTROSAT CZTI

Data Quality Report

Orbit 44198

Creation date: 2024-06-27T23:00:24.463657
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/AS1A13_074T08_9000005966_44198cztM0_level2.fits modeM0/AS1A13_074T08_9000005966_44198cztM0_level2_quad_clean.evt
Size (bytes)212,011,20050,454,720
Size202.2 MB 48.1 MB
Events in quadrant A2,056,905350,692
Events in quadrant B1,768,235354,627
Events in quadrant C1,462,326340,017
Events in quadrant D2,350,614290,719

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082841
B071161
C060321
D088101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2678150.560119%
B2678612.277819%
C2679180.671892%
D26792258.398656%

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 2678 2678 1 1 0.04% 0.04%
B 2678 2678 27 27 1.01% 1.01%
C 2679 2679 12 12 0.45% 0.45%
D 2679 2679 176 176 6.57% 6.57%

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 10 83 706245 9997.14 341 334 70.6
A 2 79 15276 211.61 341 334 70.6
A 15 174 5619 74.85 341 334 70.6
B 5 172 129726 1986.95 336 328 65.1
B 0 200 68562 1047.75 336 328 65.1
B 0 219 57426 876.76 336 328 65.1
C 14 254 111455 1416.03 333 336 78.5
C 4 254 35438 447.32 333 336 78.5
C 12 249 5054 60.12 333 336 78.5
D 11 176 527507 6481.43 323 313 81.3
D 1 52 164543 2019.08 323 313 81.3
D 13 171 109326 1340.23 323 313 81.3

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