ASTROSAT CZTI

Data Quality Report

Orbit 44385

Creation date: 2024-06-27T23:02:56.088944
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_008T05_9000005996_44385cztM0_level2.fits modeM0/AS1A13_008T05_9000005996_44385cztM0_level2_quad_clean.evt
Size (bytes)1,214,081,280261,293,760
Size1.1 GB 249.2 MB
Events in quadrant A11,805,9361,766,381
Events in quadrant B8,063,9741,835,818
Events in quadrant C7,704,3701,763,120
Events in quadrant D16,114,9791,428,316

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03320
B03320
C03322
D03320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049734282
B034878147
C034484147
D059314270

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A161803852.379481%
B162062461.517956%
C162091651.017953%
D16190205212.674490%

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 19299 16256 66 66 0.34% 0.41%
B 19300 16260 49 49 0.25% 0.30%
C 19300 16256 49 49 0.25% 0.30%
D 19300 16257 1641 1641 8.50% 10.09%

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 4073681 10508.28 1866 1828 387.5
A 13 248 347909 893.14 1866 1828 387.5
A 15 223 111700 283.55 1866 1828 387.5
B 5 172 271721 739.11 1862 1806 365.2
B 0 190 147476 398.89 1862 1806 365.2
B 5 255 80881 216.53 1862 1806 365.2
C 14 254 370548 861.14 1821 1833 428.2
C 0 207 109266 250.91 1821 1833 428.2
C 15 208 42728 95.51 1821 1833 428.2
D 1 52 3233314 7438.52 1742 1692 434.4
D 13 249 1126550 2589.19 1742 1692 434.4
D 4 221 1034673 2377.71 1742 1692 434.4

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