ASTROSAT CZTI

Data Quality Report

Orbit 44083

Creation date: 2024-06-27T22:59:10.863651
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_9000005940_44083cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44083cztM0_level2_quad_clean.evt
Size (bytes)395,585,28099,855,360
Size377.3 MB 95.2 MB
Events in quadrant A3,876,172678,788
Events in quadrant B2,723,458719,134
Events in quadrant C2,734,228669,109
Events in quadrant D4,866,688558,886

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155762
B0118542
C0119322
D0184062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56901192.091388%
B5690540.949033%
C5690310.544815%
D569060810.685413%

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 6890 5691 13 13 0.19% 0.23%
B 6890 5691 1 1 0.01% 0.02%
C 6890 5691 8 8 0.12% 0.14%
D 6890 5691 468 468 6.79% 8.22%

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 1129333 8050.81 682 670 140.2
A 15 222 42000 294.81 682 670 140.2
A 12 227 22895 158.53 682 670 140.2
B 12 111 17176 123.17 686 666 134.0
B 11 111 15722 112.32 686 666 134.0
B 14 111 15685 112.04 686 666 134.0
C 14 254 70267 437.57 670 674 159.0
C 8 222 26022 159.38 670 674 159.0
C 11 16 10040 58.89 670 674 159.0
D 1 52 977902 6151.5 633 614 158.9
D 13 249 595794 3746.33 633 614 158.9
D 5 235 340005 2136.28 633 614 158.9

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