ASTROSAT CZTI

Data Quality Report

Orbit 29195

Creation date: 2024-06-27T20:01:20.327118
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/AS1A10_048T07_9000004188_29195cztM0_level2.evt modeM0/AS1A10_048T07_9000004188_29195cztM0_level2_quad_clean.evt
Size (bytes)615,968,64071,611,200
Size587.4 MB 68.3 MB
Events in quadrant A3,574,781441,048
Events in quadrant B3,789,923447,013
Events in quadrant C5,344,965424,731
Events in quadrant D5,518,365414,902

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148402
B0155442
C0205502
D0208232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6314901.425404%
B63131141.805798%
C63133335.274830%
D63133615.718359%

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 7609 6315 0 0 0.00% 0.00%
B 7608 6314 3 3 0.04% 0.05%
C 7608 6314 30 30 0.39% 0.48%
D 7608 6314 261 261 3.43% 4.13%

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 11680 58.75 927 912 183.3
A 3 137 8202 39.77 927 912 183.3
A 0 226 7969 38.5 927 912 183.3
B 0 183 167388 983.54 913 895 169.3
B 12 111 19726 111.24 913 895 169.3
B 11 111 18445 103.67 913 895 169.3
C 3 233 1720474 8402.87 888 898 204.6
C 14 238 148125 719.44 888 898 204.6
C 2 114 15264 70.2 888 898 204.6
D 1 52 1246925 6014.79 894 878 207.2
D 8 195 608982 2935.38 894 878 207.2
D 13 104 186939 898.13 894 878 207.2

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