ASTROSAT CZTI

Data Quality Report

Orbit 49671

Creation date: 2024-12-11T08:10:01.026990
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/AS1T05_233T01_9000006438_49671cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49671cztM0_level2_quad_clean.evt
Size (bytes)1,353,058,56045,904,320
Size1.3 GB 43.8 MB
Events in quadrant A19,000,459149,871
Events in quadrant B7,736,340632,006
Events in quadrant C5,882,0105,909
Events in quadrant D16,906,05287,500

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0614620
B0277960
C0226220
D0551190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72297229100.000000%
B7229191026.421358%
C72297229100.000000%
D7230722899.972337%

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 7228 7228 6895 6895 95.39% 95.39%
B 7229 7229 1371 1371 18.97% 18.97%
C 7228 7228 10 10 0.14% 0.14%
D 7229 7228 5825 5825 80.58% 80.59%

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 0 98 3922494 57697.22 187 179 68.0
A 0 99 3917753 57627.48 187 179 68.0
A 10 83 3050821 44874.92 187 179 68.0
B 3 232 3433137 24158.67 667 646 142.1
B 4 206 382935 2690.64 667 646 142.1
B 10 44 330614 2322.39 667 646 142.1
C 15 180 1186795 112035.2 13 12 10.6
C 15 181 1112499 105021.48 13 12 10.6
C 15 197 596414 56301.8 13 12 10.6
D 15 40 2848865 29928.9 131 118 95.2
D 7 60 2841634 29852.93 131 118 95.2
D 12 191 1642428 17254.09 131 118 95.2

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