ASTROSAT CZTI

Data Quality Report

Orbit 33063

Creation date: 2024-06-27T20:44:32.173751
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/AS1A11_080T01_9000004756_33063cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33063cztM0_level2_quad_clean.evt
Size (bytes)693,118,08057,948,480
Size661.0 MB 55.3 MB
Events in quadrant A2,336,170422,528
Events in quadrant B2,919,666417,457
Events in quadrant C2,808,852411,625
Events in quadrant D12,592,828156,194

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099823
B0117462
C0112632
D0407552

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A491750.101688%
B49171493.030303%
C49171052.135448%
D4917482398.088265%

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 7011 4918 0 0 0.00% 0.00%
B 7011 4918 101 101 1.44% 2.05%
C 7011 4918 73 73 1.04% 1.48%
D 7011 4918 4719 4719 67.31% 95.95%

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 13 254 9330 73.14 596 586 119.5
A 12 227 8225 63.9 596 586 119.5
A 14 239 7469 57.58 596 586 119.5
B 5 172 316146 2810.22 592 577 112.3
B 0 229 54095 476.59 592 577 112.3
B 0 197 53307 469.57 592 577 112.3
C 0 10 391320 2887.89 581 589 135.3
C 7 221 92349 678.2 581 589 135.3
C 1 23 22941 165.2 581 589 135.3
D 7 223 10009219 111849.23 334 328 89.5
D 8 195 676991 7561.7 334 328 89.5
D 12 218 222309 2480.63 334 328 89.5

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