ASTROSAT CZTI

Data Quality Report

Orbit 46089

Creation date: 2024-06-27T23:19:03.273442
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_077T01_9000006168_46089cztM0_level2.fits modeM0/AS1A13_077T01_9000006168_46089cztM0_level2_quad_clean.evt
Size (bytes)342,236,16080,933,760
Size326.4 MB 77.2 MB
Events in quadrant A4,182,745537,936
Events in quadrant B2,423,687552,034
Events in quadrant C2,239,598531,429
Events in quadrant D3,423,740469,880

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154332
B0106130
C0104480
D0137090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A512090.175781%
B5121210.410076%
C5121140.273384%
D51212194.276508%

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 5120 5120 0 0 0.00% 0.00%
B 5121 5121 9 9 0.18% 0.18%
C 5121 5121 6 6 0.12% 0.12%
D 5121 5121 212 212 4.14% 4.14%

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 2003625 16924.64 558 545 118.4
A 9 191 17878 146.45 558 545 118.4
A 13 254 7243 56.59 558 545 118.4
B 0 190 107047 951.96 556 537 111.9
B 5 172 60699 537.71 556 537 111.9
B 3 112 21288 185.47 556 537 111.9
C 14 254 65279 494.42 550 552 130.9
C 12 2 25131 187.75 550 552 130.9
C 3 233 9086 65.19 550 552 130.9
D 1 52 374547 2740.72 538 522 136.5
D 5 235 245723 1796.74 538 522 136.5
D 13 249 234553 1714.89 538 522 136.5

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