ASTROSAT CZTI

Data Quality Report

Orbit 43063

Creation date: 2024-06-27T22:47:31.391315
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/AS1A09_006T09_9000005842_43063cztM0_level2.fits modeM0/AS1A09_006T09_9000005842_43063cztM0_level2_quad_clean.evt
Size (bytes)289,900,80073,209,600
Size276.5 MB 69.8 MB
Events in quadrant A2,486,219485,417
Events in quadrant B2,142,657504,241
Events in quadrant C2,101,929494,463
Events in quadrant D3,645,768413,098

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100411
B096191
C091011
D0140841

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4542260.572435%
B4543260.572309%
C454340.088048%
D45433758.254457%

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 6034 4543 15 15 0.25% 0.33%
B 6035 4544 17 17 0.28% 0.37%
C 6035 4544 0 0 0.00% 0.00%
D 6035 4544 312 312 5.17% 6.87%

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 429880 4178.93 492 480 102.8
A 12 189 57361 553.57 492 480 102.8
A 15 222 55893 539.28 492 480 102.8
B 0 186 133026 1384.09 489 474 95.8
B 0 229 50174 518.96 489 474 95.8
B 0 245 20669 210.87 489 474 95.8
C 15 214 198925 1731.0 486 489 114.6
C 13 61 3331 24.79 486 489 114.6
C 12 249 2761 19.82 486 489 114.6
D 2 16 1132439 9758.21 466 451 116.0
D 13 249 254493 2189.95 466 451 116.0
D 1 52 233500 2008.98 466 451 116.0

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