ASTROSAT CZTI

Data Quality Report

Orbit 41301

Creation date: 2024-06-27T22:27:13.616975
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/AS1T05_106T01_9000005642_41301cztM0_level2.fits modeM0/AS1T05_106T01_9000005642_41301cztM0_level2_quad_clean.evt
Size (bytes)362,761,92081,325,440
Size346.0 MB 77.6 MB
Events in quadrant A2,573,920567,659
Events in quadrant B2,334,241596,353
Events in quadrant C2,653,552552,707
Events in quadrant D5,499,604414,955

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103272
B0100221
C0104891
D0194891

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A470670.148746%
B4706160.339992%
C47061423.017425%
D4706110223.416915%

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 6829 4707 3 3 0.04% 0.06%
B 6829 4707 3 3 0.04% 0.06%
C 6829 4707 128 128 1.87% 2.72%
D 6829 4707 1042 1042 15.26% 22.14%

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 416120 3779.07 541 531 110.0
A 12 189 53891 485.22 541 531 110.0
A 6 10 10238 88.27 541 531 110.0
B 0 186 90540 879.63 541 527 102.3
B 0 245 63895 619.25 541 527 102.3
B 0 229 30237 290.33 541 527 102.3
C 0 10 398191 3269.07 527 532 121.6
C 15 214 196830 1613.72 527 532 121.6
C 13 61 3558 24.88 527 532 121.6
D 1 47 2515182 21538.56 477 463 116.8
D 2 249 539147 4613.83 477 463 116.8
D 1 52 212136 1812.98 477 463 116.8

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