ASTROSAT CZTI

Data Quality Report

Orbit 09554

Creation date: 2024-06-27T15:47:40.644867
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_069T01_9000001356_09554cztM0_level2.evt modeM0/AS1G07_069T01_9000001356_09554cztM0_level2_quad_clean.evt
Size (bytes)455,932,800107,521,920
Size434.8 MB 102.5 MB
Events in quadrant A3,104,494720,376
Events in quadrant B3,324,237713,410
Events in quadrant C2,923,242713,229
Events in quadrant D4,041,377683,165

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131302
B0139351
C0125721
D0160831

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6105901.474201%
B61051001.638002%
C6105550.900901%
D61051873.063063%

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 7340 6106 0 0 0.00% 0.00%
B 7340 6106 5 5 0.07% 0.08%
C 7340 6106 2 2 0.03% 0.03%
D 7340 6106 119 119 1.62% 1.95%

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 1 162 85645 553.64 762 747 153.3
A 1 161 26640 168.86 762 747 153.3
A 1 178 26449 167.61 762 747 153.3
B 4 80 154439 1093.12 755 737 140.6
B 0 214 149182 1055.73 755 737 140.6
B 4 81 34492 240.06 755 737 140.6
C 14 234 15924 89.23 744 749 170.1
C 13 61 5492 27.89 744 749 170.1
C 9 68 3042 13.48 744 749 170.1
D 1 52 650732 3474.0 737 722 187.1
D 12 227 413152 2204.24 737 722 187.1
D 13 122 49979 263.26 737 722 187.1

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