ASTROSAT CZTI

Data Quality Report

Orbit 30107

Creation date: 2024-06-27T20:10:58.994410
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/AS1C05_019T01_9000004332_30107cztM0_level2.evt modeM0/AS1C05_019T01_9000004332_30107cztM0_level2_quad_clean.evt
Size (bytes)469,033,920125,640,000
Size447.3 MB 119.8 MB
Events in quadrant A2,957,819867,730
Events in quadrant B4,556,408878,884
Events in quadrant C2,900,736829,781
Events in quadrant D3,387,939815,345

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124551
B0178601
C0122661
D0140831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5924250.422012%
B5925460.776371%
C5925550.928270%
D5925841.417722%

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 7229 5925 5 5 0.07% 0.08%
B 7230 5926 0 0 0.00% 0.00%
C 7230 5926 0 0 0.00% 0.00%
D 7230 5926 49 49 0.68% 0.83%

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 14 238 63191 427.77 742 732 146.0
A 8 192 13761 89.23 742 732 146.0
A 13 254 10778 68.8 742 732 146.0
B 6 159 1646560 11996.99 735 720 137.2
B 0 190 26527 188.11 735 720 137.2
B 12 111 15993 111.33 735 720 137.2
C 14 238 120932 741.44 700 705 162.2
C 3 233 19646 116.81 700 705 162.2
C 2 114 13161 76.82 700 705 162.2
D 13 104 323807 1985.07 698 681 162.8
D 7 238 175813 1075.9 698 681 162.8
D 8 195 118418 723.3 698 681 162.8

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