ASTROSAT CZTI

Data Quality Report

Orbit 42069

Creation date: 2024-06-27T22:36:28.108319
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/AS1A12_037T03_9000005738_42069cztM0_level2.fits modeM0/AS1A12_037T03_9000005738_42069cztM0_level2_quad_clean.evt
Size (bytes)314,579,52092,085,120
Size300.0 MB 87.8 MB
Events in quadrant A3,271,351624,249
Events in quadrant B2,446,477650,912
Events in quadrant C2,540,282606,767
Events in quadrant D2,981,346542,120

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0330
C0330
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128392
B0105752
C0105032
D0124382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5199340.653972%
B5199120.230814%
C519840.076953%
D51981332.558676%

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 7321 5200 22 22 0.30% 0.42%
B 7321 5200 3 3 0.04% 0.06%
C 7320 5199 0 0 0.00% 0.00%
D 7320 5199 124 124 1.69% 2.39%

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 526205 4216.14 609 596 124.7
A 15 222 225762 1806.15 609 596 124.7
A 15 223 151006 1206.5 609 596 124.7
B 3 112 35839 298.62 609 594 118.0
B 12 111 14451 117.41 609 594 118.0
B 11 111 13697 111.02 609 594 118.0
C 15 214 217276 1572.83 590 594 137.8
C 8 79 21295 150.26 590 594 137.8
C 13 61 4066 25.2 590 594 137.8
D 1 52 309417 2165.13 580 562 142.6
D 12 6 303972 2126.96 580 562 142.6
D 13 249 92032 641.22 580 562 142.6

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