ASTROSAT CZTI

Data Quality Report

Orbit 10131

Creation date: 2024-06-27T15:55:23.499060
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/AS1A03_116T01_9000001460_10131cztM0_level2.evt modeM0/AS1A03_116T01_9000001460_10131cztM0_level2_quad_clean.evt
Size (bytes)189,809,28031,582,080
Size181.0 MB 30.1 MB
Events in quadrant A1,323,554199,843
Events in quadrant B1,494,368203,254
Events in quadrant C1,223,450199,289
Events in quadrant D1,548,423187,301

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0482
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0550062
B0616785
C0508133
D0628082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23071175.071521%
B2301873.780965%
C2319642.759810%
D23031144.950065%

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 3619 2333 24 24 0.66% 1.03%
B 3619 2333 8 8 0.22% 0.34%
C 3619 2334 0 0 0.00% 0.00%
D 3619 2332 22 22 0.61% 0.94%

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 15 174 83814 1249.97 321 314 66.8
A 0 226 3004 40.27 321 314 66.8
A 12 194 2706 35.81 321 314 66.8
B 4 81 176889 2836.42 320 312 62.3
B 0 214 35300 562.02 320 312 62.3
B 0 219 19232 303.92 320 312 62.3
C 4 175 2649 32.09 311 312 72.8
C 14 67 2624 31.75 311 312 72.8
C 13 61 2497 30.0 311 312 72.8
D 4 95 109818 1461.53 308 299 74.9
D 8 195 99975 1330.18 308 299 74.9
D 2 152 77204 1026.3 308 299 74.9

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