ASTROSAT CZTI

Data Quality Report

Orbit 45546

Creation date: 2024-06-27T23:13:27.528937
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_071T02_9000006106_45546cztM0_level2.fits modeM0/AS1A13_071T02_9000006106_45546cztM0_level2_quad_clean.evt
Size (bytes)495,495,360116,455,680
Size472.5 MB 111.1 MB
Events in quadrant A5,880,195773,841
Events in quadrant B3,334,838827,254
Events in quadrant C3,549,330784,579
Events in quadrant D5,075,968690,030

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220133
B0140842
C0147542
D0194852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64623044.704426%
B64621151.779635%
C64621492.305788%
D64624116.360260%

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 7662 6463 28 28 0.37% 0.43%
B 7662 6463 8 8 0.10% 0.12%
C 7662 6463 71 71 0.93% 1.10%
D 7662 6463 237 237 3.09% 3.67%

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 2684553 16204.8 797 778 165.6
A 2 79 88258 528.21 797 778 165.6
A 13 248 22120 128.86 797 778 165.6
B 5 172 91483 581.3 802 780 156.0
B 0 186 28734 179.15 802 780 156.0
B 12 111 19674 121.09 802 780 156.0
C 14 254 418097 2250.01 795 801 185.5
C 1 3 20124 104.19 795 801 185.5
C 12 249 5981 27.93 795 801 185.5
D 1 52 781798 4010.11 776 752 194.8
D 13 249 721832 3702.22 776 752 194.8
D 6 239 242153 1239.42 776 752 194.8

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