ASTROSAT CZTI

Data Quality Report

Orbit 47183

Creation date: 2024-06-27T23:32:33.199917
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_037T01_9000006300_47183cztM0_level2.fits modeM0/AS1A13_037T01_9000006300_47183cztM0_level2_quad_clean.evt
Size (bytes)455,742,720107,697,600
Size434.6 MB 102.7 MB
Events in quadrant A6,443,707710,479
Events in quadrant B3,318,223752,716
Events in quadrant C3,152,479704,939
Events in quadrant D3,454,677642,398

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233082
B0143402
C0142232
D0150042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64562373.671004%
B6456811.254647%
C6456570.882900%
D6456931.440520%

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 7616 6456 91 91 1.19% 1.41%
B 7616 6456 24 24 0.32% 0.37%
C 7616 6457 34 34 0.45% 0.53%
D 7616 6457 90 90 1.18% 1.39%

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 3629885 24604.16 714 699 147.5
A 9 191 26601 175.6 714 699 147.5
A 13 248 13422 86.26 714 699 147.5
B 0 190 186313 1301.4 725 702 142.6
B 0 200 101677 707.98 725 702 142.6
B 5 172 40876 281.68 725 702 142.6
C 15 208 310937 1868.11 709 712 166.1
C 14 254 61340 365.09 709 712 166.1
C 8 222 8473 46.74 709 712 166.1
D 1 47 375930 2140.24 699 677 175.3
D 5 171 156990 891.53 699 677 175.3
D 12 218 103011 583.66 699 677 175.3

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