ASTROSAT CZTI

Data Quality Report

Orbit 06049

Creation date: 2024-06-27T15:02:07.805487
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/AS1A02_090T01_9000000778_06049cztM0_level2.evt modeM0/AS1A02_090T01_9000000778_06049cztM0_level2_quad_clean.evt
Size (bytes)405,774,720104,497,920
Size387.0 MB 99.7 MB
Events in quadrant A2,822,714694,969
Events in quadrant B3,412,491706,618
Events in quadrant C2,816,162700,826
Events in quadrant D2,847,492661,529

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01197214
B01385220
C01194819
D01232415

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5738240.418264%
B57361312.283821%
C5735170.296425%
D5737430.749521%

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 7054 5745 0 0 0.00% 0.00%
B 7054 5745 63 63 0.89% 1.10%
C 7054 5744 0 0 0.00% 0.00%
D 7054 5745 19 19 0.27% 0.33%

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 8 15 18245 117.36 723 710 149.4
A 13 251 13971 88.75 723 710 149.4
A 15 234 8229 50.32 723 710 149.4
B 3 64 384991 2758.61 732 717 139.3
B 0 219 59019 418.54 732 717 139.3
B 4 81 49668 351.41 732 717 139.3
C 1 16 12128 69.27 712 720 164.7
C 8 128 10419 58.89 712 720 164.7
C 9 54 5707 30.28 712 720 164.7
D 2 33 71424 409.47 702 684 172.8
D 5 97 30472 172.42 702 684 172.8
D 2 14 25140 141.56 702 684 172.8

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