ASTROSAT CZTI

Data Quality Report

Orbit 42660

Creation date: 2024-06-27T22:42:44.570844
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/AS1A05_013T01_9000005822_42660cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42660cztM0_level2_quad_clean.evt
Size (bytes)336,746,88089,660,160
Size321.1 MB 85.5 MB
Events in quadrant A2,943,571613,946
Events in quadrant B2,680,660625,060
Events in quadrant C2,528,927590,055
Events in quadrant D3,896,735512,087

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118552
B0115312
C0107712
D0153322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5331350.656537%
B5330460.863039%
C533050.093809%
D53304288.030019%

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 7154 5332 20 20 0.28% 0.38%
B 7153 5331 25 25 0.35% 0.47%
C 7153 5331 2 2 0.03% 0.04%
D 7153 5331 390 390 5.45% 7.32%

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 541496 4356.07 598 586 124.2
A 13 248 68077 543.52 598 586 124.2
A 7 3 11057 84.33 598 586 124.2
B 10 246 167895 1450.87 594 578 115.3
B 5 255 59304 509.23 594 578 115.3
B 3 112 40741 348.27 594 578 115.3
C 15 214 222578 1644.28 579 584 135.0
C 14 254 26386 191.11 579 584 135.0
C 8 95 6291 42.27 579 584 135.0
D 2 249 1269723 9179.76 559 541 138.3
D 12 6 239426 1727.81 559 541 138.3
D 1 52 92817 667.42 559 541 138.3

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