ASTROSAT CZTI

Data Quality Report

Orbit 45996

Creation date: 2024-06-27T23:18:34.111385
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_017T01_9000006148_45996cztM0_level2.fits modeM0/AS1A13_017T01_9000006148_45996cztM0_level2_quad_clean.evt
Size (bytes)524,079,360108,812,160
Size499.8 MB 103.8 MB
Events in quadrant A5,611,683727,965
Events in quadrant B4,302,803770,445
Events in quadrant C2,800,417745,672
Events in quadrant D6,198,395612,470

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209053
B0170352
C0128732
D0227662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62781492.373367%
B62781412.245938%
C6278100.159286%
D627875812.073909%

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 7563 6278 31 31 0.41% 0.49%
B 7563 6279 87 87 1.15% 1.39%
C 7563 6279 3 3 0.04% 0.05%
D 7563 6279 878 878 11.61% 13.98%

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 2844707 19454.36 709 694 146.2
A 15 223 25917 172.54 709 694 146.2
A 3 137 7821 48.75 709 694 146.2
B 3 112 1343647 9675.63 719 698 138.8
B 5 255 84142 601.19 719 698 138.8
B 12 111 17289 119.53 719 698 138.8
C 12 2 13730 77.5 715 719 167.9
C 13 61 4675 23.56 715 719 167.9
C 3 233 3557 16.9 715 719 167.9
D 12 2 2635413 15706.47 671 651 167.8
D 1 52 747778 4453.81 671 651 167.8
D 2 249 104790 620.8 671 651 167.8

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