ASTROSAT CZTI

Data Quality Report

Orbit 48243

Creation date: 2024-09-05T16:50:27.355428
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_029T01_9000006422_48243cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48243cztM0_level2_quad_clean.evt
Size (bytes)497,681,280109,261,440
Size474.6 MB 104.2 MB
Events in quadrant A6,998,254734,787
Events in quadrant B3,585,096769,811
Events in quadrant C2,999,594735,231
Events in quadrant D4,343,902623,021

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259401
B0147001
C0131951
D0172081

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63883064.790232%
B63891492.332133%
C6389751.173893%
D63895097.966818%

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 7543 6388 45 45 0.60% 0.70%
B 7544 6389 17 17 0.23% 0.27%
C 7544 6389 4 4 0.05% 0.06%
D 7544 6389 390 390 5.17% 6.10%

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 3901859 24370.0 767 752 160.1
A 10 223 92726 574.56 767 752 160.1
A 13 248 28922 175.98 767 752 160.1
B 0 200 241683 1596.54 767 744 150.9
B 4 21 174878 1153.87 767 744 150.9
B 5 255 88194 579.47 767 744 150.9
C 14 254 24406 132.64 755 760 178.3
C 12 2 17113 91.73 755 760 178.3
C 3 233 7322 36.81 755 760 178.3
D 12 128 1048252 5738.68 728 707 182.5
D 2 165 179733 980.74 728 707 182.5
D 5 32 64552 349.76 728 707 182.5

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