ASTROSAT CZTI

Data Quality Report

Orbit 20190529_T03_118T01_9000002962_level2

Creation date: 2019-06-04T19:19:03.001699
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1T03_118T01_9000002962cztM0_level2_bc.evt modeM0/AS1T03_118T01_9000002962cztM0_level2_quad_clean.evt
Size (bytes)16,845,220,8005,476,394,880
Size15.7 GB 5.1 GB
Events in quadrant A158,986,22134,098,865
Events in quadrant B92,843,39135,923,335
Events in quadrant C96,678,31234,231,629
Events in quadrant D133,309,79433,100,223

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084780
B084780
C084780
D084780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06480
B06480
C06480
D06480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011831550
B08870390
C09134120
D010304350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A416489407889.793296%
B41649069171.660784%
C41649092322.216620%
D416490152733.667075%

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 483194 414553 2182 2182 0.45% 0.53%
B 483194 414554 188 188 0.04% 0.05%
C 483194 414553 274 274 0.06% 0.07%
D 483194 414550 2659 2659 0.55% 0.64%

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 14 238 70999053 15324.82 21396 21017 4631.6
A 5 16 3466777 743.97 21396 21017 4631.6
A 14 254 1694544 361.33 21396 21017 4631.6
B 7 220 1570002 369.83 22495 21901 4186.0
B 10 245 931324 217.25 22495 21901 4186.0
B 3 64 848044 197.36 22495 21901 4186.0
C 9 221 13100846 2563.11 21605 21481 5102.9
C 7 220 212327 37.4 21605 21481 5102.9
C 3 233 186745 32.39 21605 21481 5102.9
D 1 52 26545686 5304.41 21781 21020 5000.5
D 2 184 6247402 1245.15 21781 21020 5000.5
D 1 20 5847852 1165.25 21781 21020 5000.5

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