ASTROSAT CZTI

Data Quality Report

Orbit 12080

Creation date: 2024-06-27T16:22:09.524149
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/AS1A04_130T04_9000001794_12080cztM0_level2.evt modeM0/AS1A04_130T04_9000001794_12080cztM0_level2_quad_clean.evt
Size (bytes)111,041,28024,586,560
Size105.9 MB 23.4 MB
Events in quadrant A714,300161,306
Events in quadrant B1,111,186160,452
Events in quadrant C650,925161,600
Events in quadrant D787,269155,041

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029632
B041911
C028821
D031811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A142080.563380%
B14201178.239437%
C142010.070423%
D142090.633803%

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 1421 1421 0 0 0.00% 0.00%
B 1421 1421 69 69 4.86% 4.86%
C 1421 1421 0 0 0.00% 0.00%
D 1421 1421 2 2 0.14% 0.14%

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 1 162 13466 351.2 176 172 37.9
A 1 178 6372 163.79 176 172 37.9
A 1 161 5775 148.02 176 172 37.9
B 4 239 421698 12185.87 169 166 34.6
B 15 204 17956 514.28 169 166 34.6
B 0 214 7897 223.49 169 166 34.6
C 14 234 2532 59.01 165 165 40.1
C 8 208 2008 45.95 165 165 40.1
C 13 61 1189 25.53 165 165 40.1
D 8 195 54210 1294.73 167 163 41.7
D 10 50 45051 1075.32 167 163 41.7
D 1 52 30160 718.6 167 163 41.7

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