ASTROSAT CZTI

Data Quality Report

Orbit 47414

Creation date: 2024-07-08T11:04:14.501951
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/AS1A13_053T01_9000006326_47414cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47414cztM0_level2_quad_clean.evt
Size (bytes)1,061,271,360236,831,040
Size1012.1 MB 225.9 MB
Events in quadrant A15,807,0251,549,560
Events in quadrant B7,339,0001,603,661
Events in quadrant C7,377,7681,551,286
Events in quadrant D7,609,4021,437,662

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0571493
B0317063
C0327703
D0336673

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03040
B03040
C03040
D03040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A148957084.753273%
B148962982.000537%
C148963242.175081%
D148963162.121375%

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 17499 14895 152 152 0.87% 1.02%
B 17500 14896 43 43 0.25% 0.29%
C 17500 14896 160 160 0.91% 1.07%
D 17500 14896 134 134 0.77% 0.90%

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 8114674 23841.3 1637 1602 340.3
A 9 191 1298563 3811.29 1637 1602 340.3
A 10 255 22090 60.21 1637 1602 340.3
B 5 255 242730 755.83 1644 1590 319.0
B 0 200 85388 262.66 1644 1590 319.0
B 14 167 68003 208.16 1644 1590 319.0
C 12 2 596253 1562.8 1625 1628 380.5
C 0 207 381609 998.67 1625 1628 380.5
C 3 233 58294 148.93 1625 1628 380.5
D 2 249 521120 1286.45 1627 1573 403.9
D 12 33 142053 347.84 1627 1573 403.9
D 5 235 137981 337.76 1627 1573 403.9

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