ASTROSAT CZTI

Data Quality Report

Orbit 43145

Creation date: 2024-06-27T22:48:38.011781
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/AS1A09_107T01_9000005854_43145cztM0_level2.fits modeM0/AS1A09_107T01_9000005854_43145cztM0_level2_quad_clean.evt
Size (bytes)386,098,56092,701,440
Size368.2 MB 88.4 MB
Events in quadrant A4,554,190593,162
Events in quadrant B2,706,464634,705
Events in quadrant C2,578,512623,227
Events in quadrant D4,005,620553,593

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172492
B0120762
C0115622
D0160382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57483506.089074%
B5749160.278309%
C574920.034789%
D57483005.219207%

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 7181 5749 337 337 4.69% 5.86%
B 7182 5750 8 8 0.11% 0.14%
C 7182 5750 0 0 0.00% 0.00%
D 7181 5749 257 257 3.58% 4.47%

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 15 237 1158797 9513.97 587 575 121.7
A 10 83 602365 4943.27 587 575 121.7
A 15 222 347035 2845.92 587 575 121.7
B 0 189 118963 1018.34 600 582 116.2
B 0 186 76286 651.23 600 582 116.2
B 0 229 71815 612.76 600 582 116.2
C 15 214 257145 1868.67 590 595 137.3
C 14 254 14918 104.33 590 595 137.3
C 13 61 3998 24.79 590 595 137.3
D 1 52 1243804 8790.55 576 558 141.4
D 12 0 371815 2625.03 576 558 141.4
D 12 233 71401 500.91 576 558 141.4

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