ASTROSAT CZTI

Data Quality Report

Orbit 41058

Creation date: 2024-06-27T22:23:55.433373
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/AS1A12_006T09_9000005592_41058cztM0_level2.fits modeM0/AS1A12_006T09_9000005592_41058cztM0_level2_quad_clean.evt
Size (bytes)314,305,92088,387,200
Size299.7 MB 84.3 MB
Events in quadrant A2,832,014598,227
Events in quadrant B2,746,821604,862
Events in quadrant C2,771,552568,152
Events in quadrant D2,864,427528,540

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116883
B0118432
C0116502
D0124412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5384100.185736%
B5384681.263001%
C5384631.170134%
D53841061.968796%

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 7027 5385 6 6 0.09% 0.11%
B 7027 5385 45 45 0.64% 0.84%
C 7027 5385 63 63 0.90% 1.17%
D 7027 5385 90 90 1.28% 1.67%

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 515654 4195.62 592 580 122.8
A 13 254 9175 70.01 592 580 122.8
A 12 189 8496 64.48 592 580 122.8
B 0 190 109629 944.65 587 570 115.4
B 5 255 93476 804.74 587 570 115.4
B 8 128 82616 710.67 587 570 115.4
C 15 214 247764 1832.79 571 574 134.9
C 0 10 164739 1217.2 571 574 134.9
C 14 254 86000 633.39 571 574 134.9
D 13 249 238475 1679.22 571 554 141.7
D 2 249 181283 1275.56 571 554 141.7
D 12 233 106721 749.31 571 554 141.7

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