ASTROSAT CZTI

Data Quality Report

Orbit 20191229_C05_013T01_9000003398_level2

Creation date: 2019-12-31T11:31:41.042203
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/AS1C05_013T01_9000003398cztM0_level2_bc.evt modeM0/AS1C05_013T01_9000003398cztM0_level2_quad_clean.evt
Size (bytes)346,616,640199,088,640
Size330.6 MB 189.9 MB
Events in quadrant A2,101,7511,351,045
Events in quadrant B2,283,7741,371,772
Events in quadrant C2,027,4461,309,626
Events in quadrant D3,358,5871,268,217

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213930
B0218020
C0213950
D0256040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02120
B02120
C02120
D02120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10540770.730550%
B10540930.882353%
C105401050.996205%
D105402642.504744%

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 11040 10540 0 0 0.00% 0.00%
B 11039 10539 2 2 0.02% 0.02%
C 11039 10539 0 0 0.00% 0.00%
D 11039 10539 30 30 0.27% 0.28%

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 15462 123.17 540 530 121.2
A 14 237 11834 93.24 540 530 121.2
A 13 170 3686 26.03 540 530 121.2
B 0 189 76081 712.05 545 531 106.1
B 0 190 74191 694.23 545 531 106.1
B 5 172 21122 194.07 545 531 106.1
C 0 10 12006 92.34 520 517 124.4
C 7 247 7665 57.45 520 517 124.4
C 13 61 3048 20.34 520 517 124.4
D 1 52 455074 3611.61 528 509 125.9
D 13 104 138487 1096.26 528 509 125.9
D 13 249 120545 953.71 528 509 125.9

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