ASTROSAT CZTI

Data Quality Report

Orbit 01080

Creation date: 2024-06-27T14:07:09.247561
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/AS1P01_180T10_9000000192_01080cztM0_level2.evt modeM0/AS1P01_180T10_9000000192_01080cztM0_level2_quad_clean.evt
Size (bytes)282,222,72022,754,880
Size269.1 MB 21.7 MB
Events in quadrant A2,089,144145,934
Events in quadrant B2,196,720144,252
Events in quadrant C2,193,175139,418
Events in quadrant D1,959,314140,751

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073321
B076741
C076401
D069581

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160950.310752%
B160990.559354%
C160930.186451%
D160950.310752%

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 2534 1609 66 66 2.60% 4.10%
B 2534 1610 98 98 3.87% 6.09%
C 2534 1610 92 92 3.63% 5.71%
D 2534 1610 54 54 2.13% 3.35%

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 15 233 26563 200.38 537 540 129.9
A 12 243 1735 9.2 537 540 129.9
A 3 111 1730 9.16 537 540 129.9
B 5 191 8639 58.82 574 573 137.1
B 5 249 5648 37.01 574 573 137.1
B 5 184 1752 8.6 574 573 137.1
C 15 241 75638 496.82 536 556 151.1
C 3 79 8815 54.65 536 556 151.1
C 3 111 7034 42.87 536 556 151.1
D 2 216 19431 118.19 510 530 159.9
D 15 13 14827 89.4 510 530 159.9
D 10 125 7873 45.92 510 530 159.9

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