ASTROSAT CZTI

Data Quality Report

Orbit 47372

Creation date: 2024-07-02T03:52:12.825946
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_093T25_9000006324_47372cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47372cztM0_level2_quad_clean.evt
Size (bytes)530,104,320106,827,840
Size505.5 MB 101.9 MB
Events in quadrant A7,055,587709,868
Events in quadrant B3,916,798754,906
Events in quadrant C2,886,982718,261
Events in quadrant D5,262,195600,574

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253802
B0159142
C0132532
D0203132

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64643855.956064%
B64641271.964728%
C6464240.371287%
D646466210.241337%

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 7604 6464 175 175 2.30% 2.71%
B 7604 6465 38 38 0.50% 0.59%
C 7604 6465 0 0 0.00% 0.00%
D 7604 6465 606 606 7.97% 9.37%

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 3801205 24671.4 737 724 154.0
A 9 191 362908 2351.17 737 724 154.0
A 9 240 21545 135.16 737 724 154.0
B 4 171 376663 2553.74 746 724 147.2
B 0 200 236771 1603.46 746 724 147.2
B 0 190 216591 1466.38 746 724 147.2
C 3 233 19685 109.3 730 735 173.4
C 12 250 6638 34.05 730 735 173.4
C 1 3 5914 29.87 730 735 173.4
D 2 165 1097878 6263.31 695 672 175.2
D 12 2 882790 5035.5 695 672 175.2
D 12 233 231001 1314.81 695 672 175.2

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