ASTROSAT CZTI

Data Quality Report

Orbit 41184

Creation date: 2024-06-27T22:25:22.400528
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/AS1A12_101T01_9000005612_41184cztM0_level2.fits modeM0/AS1A12_101T01_9000005612_41184cztM0_level2_quad_clean.evt
Size (bytes)328,446,72096,030,720
Size313.2 MB 91.6 MB
Events in quadrant A3,028,254659,565
Events in quadrant B3,004,120667,905
Events in quadrant C3,271,279614,440
Events in quadrant D2,435,842590,155

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121363
B0124122
C0130132
D0110002

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5369130.242131%
B53691402.607562%
C53692073.855467%
D5369160.298007%

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 7402 5370 3 3 0.04% 0.06%
B 7402 5370 102 102 1.38% 1.90%
C 7402 5370 200 200 2.70% 3.72%
D 7402 5370 11 11 0.15% 0.20%

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 509989 4029.71 625 615 126.4
A 12 189 47190 368.46 625 615 126.4
A 2 79 29105 225.39 625 615 126.4
B 0 229 282381 2452.69 607 591 114.9
B 5 185 204085 1771.2 607 591 114.9
B 5 255 77626 670.51 607 591 114.9
C 0 10 444166 3311.45 583 587 134.0
C 9 54 304733 2270.54 583 587 134.0
C 15 214 232041 1727.87 583 587 134.0
D 13 249 68955 468.06 602 585 146.1
D 2 249 29928 200.88 602 585 146.1
D 2 120 29134 195.45 602 585 146.1

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