ASTROSAT CZTI

Data Quality Report

Orbit 42118

Creation date: 2024-06-27T22:37:07.833165
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/AS1A12_044T22_9000005750_42118cztM0_level2.fits modeM0/AS1A12_044T22_9000005750_42118cztM0_level2_quad_clean.evt
Size (bytes)132,140,16036,172,800
Size126.0 MB 34.5 MB
Events in quadrant A1,124,282244,942
Events in quadrant B1,001,480251,144
Events in quadrant C1,059,754235,721
Events in quadrant D1,534,966207,075

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04617130
B0447185
C0449393
D06485443

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0471
B0482
C0482
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A216320.092464%
B216820.092251%
C216510.046189%
D21571456.722299%

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 2184 2172 0 0 0.00% 0.00%
B 2184 2171 0 0 0.00% 0.00%
C 2183 2174 0 0 0.00% 0.00%
D 2168 2162 129 129 5.95% 5.97%

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 10 83 135722 2552.66 246 242 53.1
A 15 222 35068 656.18 246 242 53.1
A 3 137 2875 49.61 246 242 53.1
B 4 81 12667 243.51 249 242 51.0
B 0 229 9025 172.13 249 242 51.0
B 12 111 6315 119.02 249 242 51.0
C 15 214 84720 1423.65 246 247 59.3
C 8 79 14714 243.82 246 247 59.3
C 13 61 1655 23.73 246 247 59.3
D 12 6 289608 4947.7 233 226 58.5
D 13 249 249422 4260.62 233 226 58.5
D 12 233 65070 1108.67 233 226 58.5

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