ASTROSAT CZTI

Data Quality Report

Orbit 38329

Creation date: 2024-06-27T21:51:19.443676
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_094T24_9000005374_38329cztM0_level2.fits modeM0/AS1A10_094T24_9000005374_38329cztM0_level2_quad_clean.evt
Size (bytes)979,496,640161,242,560
Size934.1 MB 153.8 MB
Events in quadrant A5,384,6541,177,168
Events in quadrant B5,478,0531,201,608
Events in quadrant C4,864,1121,168,876
Events in quadrant D19,750,214635,054

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02060
B02060
C02060
D02060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221184
B0228563
C0208013
D0655273

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0470

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10091340.336934%
B10091900.891884%
C10091170.168467%
D10091472546.823902%

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 13617 10093 15 15 0.11% 0.15%
B 13617 10093 38 38 0.28% 0.38%
C 13617 10093 7 7 0.05% 0.07%
D 13617 10093 5143 5143 37.77% 50.96%

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 732178 3209.97 1141 1119 227.7
A 13 248 82249 356.23 1141 1119 227.7
A 12 189 75620 327.12 1141 1119 227.7
B 0 183 353380 1654.71 1134 1103 212.9
B 0 229 346461 1622.21 1134 1103 212.9
B 0 186 135775 632.58 1134 1103 212.9
C 15 214 427755 1659.41 1110 1116 257.1
C 1 23 33656 126.56 1110 1116 257.1
C 0 10 26376 98.25 1110 1116 257.1
D 10 203 12754112 51524.45 994 966 247.5
D 2 16 743463 2999.79 994 966 247.5
D 12 235 705891 2847.99 994 966 247.5

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