ASTROSAT CZTI

Data Quality Report

Orbit 47603

Creation date: 2024-07-17T15:18:56.332254
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_071T01_9000006340_47603cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47603cztM0_level2_quad_clean.evt
Size (bytes)538,983,360105,387,840
Size514.0 MB 100.5 MB
Events in quadrant A7,654,522682,924
Events in quadrant B4,353,156708,641
Events in quadrant C3,168,997710,721
Events in quadrant D4,267,890633,485

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278151
B0170821
C0140521
D0172101

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65365929.057528%
B65374566.975677%
C6537831.269696%
D65373775.767171%

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 7581 6537 346 346 4.56% 5.29%
B 7582 6538 250 250 3.30% 3.82%
C 7582 6538 15 15 0.20% 0.23%
D 7582 6538 316 316 4.17% 4.83%

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 3474261 22940.36 730 715 151.4
A 13 248 801730 5290.15 730 715 151.4
A 9 191 352741 2324.89 730 715 151.4
B 5 172 883756 6092.94 730 705 144.9
B 0 200 176926 1215.9 730 705 144.9
B 5 29 132375 908.5 730 705 144.9
C 3 233 232635 1336.08 736 740 173.6
C 6 247 46863 265.74 736 740 173.6
C 0 207 10078 53.8 736 740 173.6
D 12 2 719957 3975.31 732 711 180.9
D 2 249 345348 1904.83 732 711 180.9
D 2 165 111407 611.82 732 711 180.9

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