ASTROSAT CZTI

Data Quality Report

Orbit 34107

Creation date: 2024-06-27T20:56:37.743960
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/AS1A05_208T01_9000004870_34107cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34107cztM0_level2_quad_clean.evt
Size (bytes)815,270,40065,373,120
Size777.5 MB 62.3 MB
Events in quadrant A4,955,422371,502
Events in quadrant B6,839,095373,461
Events in quadrant C5,027,213375,304
Events in quadrant D7,376,061349,893

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192271
B0250921
C0195401
D0268351

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73116178.439338%
B7311101813.924224%
C73111532.092737%
D73116819.314731%

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 9434 7312 528 528 5.60% 7.22%
B 9434 7312 733 733 7.77% 10.02%
C 9434 7312 118 118 1.25% 1.61%
D 9434 7312 668 668 7.08% 9.14%

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 15 17 1550639 8902.43 873 857 174.1
A 13 6 20922 115.26 873 857 174.1
A 13 254 13619 73.31 873 857 174.1
B 5 172 3020984 18784.45 848 828 160.8
B 5 31 249213 1544.88 848 828 160.8
B 4 81 62298 382.32 848 828 160.8
C 0 10 679615 3350.97 877 884 202.5
C 0 239 411969 2029.57 877 884 202.5
C 15 214 308806 1520.25 877 884 202.5
D 8 195 1624473 7688.32 861 839 211.2
D 1 52 1406422 6655.8 861 839 211.2
D 13 249 324759 1533.84 861 839 211.2

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