ASTROSAT CZTI

Data Quality Report

Orbit 43052

Creation date: 2024-06-27T22:47:22.666686
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_148T01_9000005838_43052cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43052cztM0_level2_quad_clean.evt
Size (bytes)500,500,800107,118,720
Size477.3 MB 102.2 MB
Events in quadrant A4,416,511799,082
Events in quadrant B5,266,167677,586
Events in quadrant C2,840,515802,314
Events in quadrant D5,600,961601,057

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170509
B0188072
C0113832
D0200172

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51882855.493446%
B5188114722.108712%
C518870.134927%
D5188100019.275251%

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 7101 5189 179 179 2.52% 3.45%
B 7101 5189 943 943 13.28% 18.17%
C 7101 5189 0 0 0.00% 0.00%
D 7101 5189 923 923 13.00% 17.79%

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 15 222 675371 4583.77 660 650 147.2
A 10 83 579993 3935.81 660 650 147.2
A 15 237 531772 3608.22 660 650 147.2
B 0 186 2427802 18137.91 628 617 133.8
B 4 171 272611 2032.56 628 617 133.8
B 0 229 76006 563.37 628 617 133.8
C 15 214 232968 1401.49 656 662 165.8
C 14 254 46181 274.61 656 662 165.8
C 13 61 4434 22.76 656 662 165.8
D 2 16 1601178 9954.1 608 590 160.8
D 1 52 1043428 6485.44 608 590 160.8
D 13 249 291638 1810.04 608 590 160.8

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