ASTROSAT CZTI

Data Quality Report

Orbit 43153

Creation date: 2024-06-27T22:48:41.354052
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/AS1C07_001T10_9000005856_43153cztM0_level2.fits modeM0/AS1C07_001T10_9000005856_43153cztM0_level2_quad_clean.evt
Size (bytes)302,152,32087,131,520
Size288.2 MB 83.1 MB
Events in quadrant A3,554,933571,334
Events in quadrant B2,498,657603,988
Events in quadrant C2,496,689568,244
Events in quadrant D2,225,063526,832

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137842
B0111102
C0108732
D0107242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52492144.076967%
B5249170.323871%
C5249140.266717%
D5249210.400076%

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 5250 163 163 2.30% 3.10%
B 7101 5250 3 3 0.04% 0.06%
C 7101 5250 9 9 0.13% 0.17%
D 7101 5250 13 13 0.18% 0.25%

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 584474 5104.72 557 546 114.4
A 15 222 471949 4121.02 557 546 114.4
A 15 237 318241 2777.3 557 546 114.4
B 0 229 132516 1224.85 563 547 107.7
B 0 186 38829 355.31 563 547 107.7
B 5 172 38271 350.13 563 547 107.7
C 15 214 234033 1853.36 543 546 126.0
C 14 254 127599 1008.51 543 546 126.0
C 0 239 9768 73.2 543 546 126.0
D 5 171 37710 280.48 547 532 132.6
D 1 52 29892 221.5 547 532 132.6
D 2 234 26839 198.47 547 532 132.6

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