ASTROSAT CZTI

Data Quality Report

Orbit 46813

Creation date: 2024-06-27T23:27:59.747704
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/AS1C07_001T10_9000006272_46813cztM0_level2.fits modeM0/AS1C07_001T10_9000006272_46813cztM0_level2_quad_clean.evt
Size (bytes)497,352,960117,126,720
Size474.3 MB 111.7 MB
Events in quadrant A6,605,240766,896
Events in quadrant B3,821,757787,180
Events in quadrant C3,076,409778,393
Events in quadrant D4,332,092698,153

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245070
B0166700
C0149080
D0183510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7409260.350925%
B7410500.674764%
C741040.053981%
D74101892.550607%

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 7409 7409 3 3 0.04% 0.04%
B 7410 7410 26 26 0.35% 0.35%
C 7410 7410 0 0 0.00% 0.00%
D 7410 7410 152 152 2.05% 2.05%

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 3546099 21785.59 775 759 162.7
A 13 6 16657 97.69 775 759 162.7
A 13 254 13051 75.53 775 759 162.7
B 5 255 335117 2196.73 778 752 152.2
B 4 171 114151 745.01 778 752 152.2
B 3 112 95262 620.92 778 752 152.2
C 14 254 26207 140.48 776 780 181.0
C 3 233 9722 49.4 776 780 181.0
C 5 4 8218 41.09 776 780 181.0
D 13 249 362277 1911.69 758 736 189.1
D 1 52 339304 1790.22 758 736 189.1
D 12 233 218364 1150.73 758 736 189.1

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