ASTROSAT CZTI

Data Quality Report

Orbit 45294

Creation date: 2024-06-27T23:12:02.818725
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_024T03_9000006064_45294cztM0_level2.fits modeM0/AS1A13_024T03_9000006064_45294cztM0_level2_quad_clean.evt
Size (bytes)263,615,04055,725,120
Size251.4 MB 53.1 MB
Events in quadrant A2,911,091378,339
Events in quadrant B1,625,090387,798
Events in quadrant C1,740,846364,187
Events in quadrant D3,197,992300,609

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109420
B074000
C078300
D0119570

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A362440.110375%
B362450.137969%
C3624300.827815%
D362544712.331034%

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 3624 3624 0 0 0.00% 0.00%
B 3624 3624 2 2 0.06% 0.06%
C 3624 3624 25 25 0.69% 0.69%
D 3625 3625 420 420 11.59% 11.59%

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 1371934 16555.11 389 381 82.8
A 10 248 27536 327.77 389 381 82.8
A 13 254 4797 53.3 389 381 82.8
B 0 186 26386 337.93 386 375 77.0
B 3 112 19098 243.25 386 375 77.0
B 5 172 14589 184.67 386 375 77.0
C 14 254 176816 1935.02 380 381 91.2
C 3 233 46400 504.7 380 381 91.2
C 12 2 27592 298.43 380 381 91.2
D 2 249 824441 8924.13 358 347 92.3
D 13 249 596568 6456.49 358 347 92.3
D 13 29 105873 1142.74 358 347 92.3

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