ASTROSAT CZTI

Data Quality Report

Orbit 47100

Creation date: 2024-06-27T23:31:43.640849
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/AS1C09_003T01_9000006298_47100cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47100cztM0_level2_quad_clean.evt
Size (bytes)560,701,440104,362,560
Size534.7 MB 99.5 MB
Events in quadrant A7,330,333709,015
Events in quadrant B4,701,894695,437
Events in quadrant C3,030,585701,737
Events in quadrant D5,172,947586,567

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0269481
B0184591
C0140581
D0201961

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67014536.760185%
B67016109.103119%
C67021011.507013%
D670283312.429126%

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 7566 6701 132 132 1.74% 1.97%
B 7566 6701 364 364 4.81% 5.43%
C 7567 6703 12 12 0.16% 0.18%
D 7567 6702 614 614 8.11% 9.16%

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 3879949 25458.44 740 724 152.4
A 9 191 348289 2280.99 740 724 152.4
A 7 3 131157 856.0 740 724 152.4
B 5 32 1270418 9054.88 717 695 140.2
B 0 200 377852 2689.65 717 695 140.2
B 0 190 89219 631.3 717 695 140.2
C 14 254 67817 397.27 726 725 168.9
C 15 208 63930 374.26 726 725 168.9
C 12 249 28580 164.94 726 725 168.9
D 2 249 1950438 11186.21 693 670 174.3
D 1 47 195959 1120.41 693 670 174.3
D 13 171 110357 629.3 693 670 174.3

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