ASTROSAT CZTI

Data Quality Report

Orbit 23728

Creation date: 2024-06-27T18:58:07.839342
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/AS1A07_027T14_9000003510_23728cztM0_level2.evt modeM0/AS1A07_027T14_9000003510_23728cztM0_level2_quad_clean.evt
Size (bytes)77,434,56018,656,640
Size73.8 MB 17.8 MB
Events in quadrant A527,380118,031
Events in quadrant B545,349123,023
Events in quadrant C528,814118,486
Events in quadrant D659,645115,063

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023760
B023880
C023860
D027203

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A118700.000000%
B118710.084246%
C118720.168492%
D118610.084317%

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 1187 1187 0 0 0.00% 0.00%
B 1187 1187 0 0 0.00% 0.00%
C 1187 1187 0 0 0.00% 0.00%
D 1186 1186 1 1 0.08% 0.08%

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 13 254 1942 60.65 136 133 29.8
A 3 137 1263 37.88 136 133 29.8
A 0 226 1146 33.96 136 133 29.8
B 0 189 6607 228.09 135 132 28.4
B 0 228 4818 165.07 135 132 28.4
B 0 229 4184 142.74 135 132 28.4
C 14 238 19911 617.46 129 130 32.0
C 10 9 4476 135.66 129 130 32.0
C 13 61 931 25.0 129 130 32.0
D 12 227 97456 2855.96 131 127 34.1
D 7 238 41983 1228.2 131 127 34.1
D 1 52 10856 314.82 131 127 34.1

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