ASTROSAT CZTI

Data Quality Report

Orbit 38583

Creation date: 2024-06-27T21:53:46.203818
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_018T01_9000005386_38583cztM0_level2.fits modeM0/AS1A12_018T01_9000005386_38583cztM0_level2_quad_clean.evt
Size (bytes)463,772,16095,633,280
Size442.3 MB 91.2 MB
Events in quadrant A3,106,970671,267
Events in quadrant B3,004,727677,058
Events in quadrant C4,494,194615,584
Events in quadrant D6,097,322514,767

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128963
B0129462
C0171882
D0221602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5970200.335008%
B5970931.557789%
C59703395.678392%
D5970102517.169179%

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 7253 5971 14 14 0.19% 0.23%
B 7253 5971 71 71 0.98% 1.19%
C 7253 5971 289 289 3.98% 4.84%
D 7253 5971 944 944 13.02% 15.81%

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 436114 3219.76 665 651 135.2
A 13 248 38303 278.39 665 651 135.2
A 9 143 25212 181.6 665 651 135.2
B 5 184 200227 1587.21 656 637 125.7
B 0 183 91912 725.85 656 637 125.7
B 5 172 75571 595.9 656 637 125.7
C 14 254 1672565 11351.71 635 639 147.3
C 15 214 240877 1631.12 635 639 147.3
C 0 10 32985 219.62 635 639 147.3
D 12 227 1239279 8315.27 607 589 149.0
D 5 222 732545 4913.59 607 589 149.0
D 1 47 422243 2830.54 607 589 149.0

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