ASTROSAT CZTI

Data Quality Report

Orbit 42912

Creation date: 2024-06-27T22:45:44.052078
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/AS1T05_143T01_9000005830_42912cztM0_level2.fits modeM0/AS1T05_143T01_9000005830_42912cztM0_level2_quad_clean.evt
Size (bytes)380,436,48080,372,160
Size362.8 MB 76.6 MB
Events in quadrant A3,079,074545,215
Events in quadrant B5,117,670500,258
Events in quadrant C2,348,632542,594
Events in quadrant D3,140,732488,091

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124262
B0189042
C0104662
D0132262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50901062.082515%
B509083216.345776%
C5090190.373281%
D50902144.204322%

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 6913 5091 88 88 1.27% 1.73%
B 6913 5091 733 733 10.60% 14.40%
C 6913 5091 14 14 0.20% 0.27%
D 6913 5091 209 209 3.02% 4.11%

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 543197 4940.62 528 517 109.8
A 15 237 425812 3871.94 528 517 109.8
A 2 79 61699 557.01 528 517 109.8
B 0 229 2963812 29345.31 517 500 101.0
B 5 172 95917 944.9 517 500 101.0
B 12 111 12552 119.35 517 500 101.0
C 15 214 208033 1713.48 522 525 121.1
C 12 2 64466 527.99 522 525 121.1
C 8 79 14033 111.54 522 525 121.1
D 12 6 244852 1948.22 512 498 125.4
D 1 47 214168 1703.58 512 498 125.4
D 2 249 154384 1226.93 512 498 125.4

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