ASTROSAT CZTI

Data Quality Report

Orbit 07172

Creation date: 2024-06-27T15:16:29.290046
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/AS1G06_102T01_9000000978_07172cztM0_level2.evt modeM0/AS1G06_102T01_9000000978_07172cztM0_level2_quad_clean.evt
Size (bytes)482,238,72066,435,840
Size459.9 MB 63.4 MB
Events in quadrant A2,416,856422,394
Events in quadrant B2,583,889427,419
Events in quadrant C2,633,645421,903
Events in quadrant D6,607,022364,977

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109782
B0114261
C0117721
D0234591

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5352290.541854%
B5352230.429746%
C53521242.316891%
D5352109720.497010%

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 5707 5352 1 1 0.02% 0.02%
B 5707 5352 1 1 0.02% 0.02%
C 5707 5352 100 100 1.75% 1.87%
D 5707 5352 1096 1096 19.20% 20.48%

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 13 248 35212 275.29 608 591 125.8
A 8 15 19734 152.22 608 591 125.8
A 14 111 18775 144.59 608 591 125.8
B 0 214 75860 627.4 614 597 120.0
B 15 204 64058 529.02 614 597 120.0
B 4 81 40476 332.43 614 597 120.0
C 8 208 344174 2532.29 584 584 135.7
C 10 22 6295 42.09 584 584 135.7
C 14 67 5190 33.94 584 584 135.7
D 12 221 3904914 28635.03 553 536 136.3
D 8 195 170812 1248.82 553 536 136.3
D 2 216 132780 969.89 553 536 136.3

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