ASTROSAT CZTI

Data Quality Report

Orbit 46216

Creation date: 2024-06-27T23:20:29.451258
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_093T12_9000006184_46216cztM0_level2.fits modeM0/AS1A13_093T12_9000006184_46216cztM0_level2_quad_clean.evt
Size (bytes)505,929,600114,863,040
Size482.5 MB 109.5 MB
Events in quadrant A6,583,485730,073
Events in quadrant B3,859,454793,560
Events in quadrant C3,538,746775,342
Events in quadrant D4,207,019695,410

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243465
B0162085
C0154644
D01749814

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69474816.923852%
B69471422.044048%
C69471321.900101%
D69452173.124550%

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 8903 6949 117 117 1.31% 1.68%
B 8903 6950 12 12 0.13% 0.17%
C 8903 6950 73 73 0.82% 1.05%
D 8903 6950 115 115 1.29% 1.65%

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 3153396 19702.39 770 753 160.0
A 9 191 300098 1870.75 770 753 160.0
A 13 248 71617 442.86 770 753 160.0
B 3 112 608985 4010.1 786 761 151.7
B 5 255 69713 454.61 786 761 151.7
B 12 111 19725 125.03 786 761 151.7
C 12 2 225127 1222.63 784 785 183.5
C 14 254 164704 893.33 784 785 183.5
C 5 49 63978 344.39 784 785 183.5
D 1 52 935042 4854.08 772 748 192.5
D 12 128 101693 524.45 772 748 192.5
D 2 249 68523 352.12 772 748 192.5

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