ASTROSAT CZTI

Data Quality Report

Orbit 44085

Creation date: 2024-06-27T22:59:12.682190
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/AS1A13_012T01_9000005942_44085cztM0_level2.fits modeM0/AS1A13_012T01_9000005942_44085cztM0_level2_quad_clean.evt
Size (bytes)420,091,200114,209,280
Size400.6 MB 108.9 MB
Events in quadrant A4,608,703756,499
Events in quadrant B3,112,528797,295
Events in quadrant C3,108,821747,695
Events in quadrant D4,186,025677,679

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185062
B0140102
C0141682
D0171892

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68741091.585685%
B6874360.523713%
C6873240.349192%
D68731572.284301%

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 7714 6875 17 17 0.22% 0.25%
B 7714 6875 0 0 0.00% 0.00%
C 7713 6874 1 1 0.01% 0.01%
D 7713 6874 122 122 1.58% 1.77%

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 1302733 8101.4 778 764 160.7
A 15 222 196910 1220.5 778 764 160.7
A 7 3 92279 569.44 778 764 160.7
B 12 111 20203 125.9 785 760 154.4
B 11 111 18614 115.61 785 760 154.4
B 14 111 18531 115.08 785 760 154.4
C 14 96 42340 225.24 773 777 184.5
C 14 254 37343 198.16 773 777 184.5
C 9 237 8459 41.63 773 777 184.5
D 13 249 501624 2654.56 759 739 188.7
D 1 52 467470 2473.55 759 739 188.7
D 2 249 155907 822.35 759 739 188.7

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