ASTROSAT CZTI

Data Quality Report

Orbit 08212

Creation date: 2024-06-27T15:29:46.479062
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/AS1G07_034T01_9000001134_08212cztM0_level2.evt modeM0/AS1G07_034T01_9000001134_08212cztM0_level2_quad_clean.evt
Size (bytes)136,762,56037,103,040
Size130.4 MB 35.4 MB
Events in quadrant A978,295244,529
Events in quadrant B1,025,282248,163
Events in quadrant C955,780249,181
Events in quadrant D1,047,009239,112

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042092
B042942
C041442
D043872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1951462.357765%
B1951693.536648%
C1951301.537673%
D1951251.281394%

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 2151 1953 0 0 0.00% 0.00%
B 2151 1953 4 4 0.19% 0.20%
C 2151 1953 0 0 0.00% 0.00%
D 2151 1953 4 4 0.19% 0.20%

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 8 15 3692 63.94 252 245 53.9
A 5 16 3134 53.59 252 245 53.9
A 0 226 2426 40.46 252 245 53.9
B 0 213 27571 531.43 252 245 51.4
B 0 230 8669 163.83 252 245 51.4
B 12 111 4690 86.44 252 245 51.4
C 9 68 1900 28.51 244 244 58.1
C 13 61 1869 27.98 244 244 58.1
C 7 159 1003 13.07 244 244 58.1
D 13 105 58495 934.24 246 238 62.4
D 2 152 28906 459.74 246 238 62.4
D 2 234 7730 120.15 246 238 62.4

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