ASTROSAT CZTI

Data Quality Report

Orbit 46114

Creation date: 2024-06-27T23:19:24.623579
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_9000006170_46114cztM0_level2.fits modeM0/AS1C07_001T10_9000006170_46114cztM0_level2_quad_clean.evt
Size (bytes)660,496,320102,176,640
Size629.9 MB 97.4 MB
Events in quadrant A5,863,544720,487
Events in quadrant B3,105,010779,245
Events in quadrant C3,006,812757,018
Events in quadrant D11,960,339375,155

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220241
B0138661
C0138671
D0401214

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66242163.260870%
B6624350.528382%
C6624480.724638%
D6623338651.124868%

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 7634 6625 27 27 0.35% 0.41%
B 7634 6625 5 5 0.07% 0.08%
C 7634 6625 12 12 0.16% 0.18%
D 7633 6624 2852 2852 37.36% 43.06%

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 3000475 19974.83 722 708 150.2
A 9 191 51243 336.5 722 708 150.2
A 13 254 10709 66.59 722 708 150.2
B 0 190 75197 518.17 740 718 143.7
B 3 112 36515 249.05 740 718 143.7
B 0 245 26592 180.01 740 718 143.7
C 14 254 120491 696.25 733 737 172.0
C 3 9 12722 69.68 733 737 172.0
C 2 14 8819 46.99 733 737 172.0
D 2 37 7128860 50541.52 568 554 141.0
D 1 52 2026627 14365.38 568 554 141.0
D 8 129 193764 1369.91 568 554 141.0

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