ASTROSAT CZTI

Data Quality Report

Orbit 09319

Creation date: 2024-06-27T15:44:26.300060
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_002T01_9000001316_09319cztM0_level2.evt modeM0/AS1G07_002T01_9000001316_09319cztM0_level2_quad_clean.evt
Size (bytes)452,001,60093,412,800
Size431.1 MB 89.1 MB
Events in quadrant A3,456,395604,128
Events in quadrant B3,217,938609,149
Events in quadrant C2,932,405603,537
Events in quadrant D3,662,306580,635

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143622
B0136981
C0128163
D0152521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6180580.938511%
B6180791.278317%
C6179450.728273%
D61801802.912621%

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 7400 6181 4 4 0.05% 0.06%
B 7400 6181 20 20 0.27% 0.32%
C 7400 6181 0 0 0.00% 0.00%
D 7400 6181 113 113 1.53% 1.83%

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 5 475596 3079.43 762 748 154.2
A 1 162 32413 205.35 762 748 154.2
A 0 226 7080 41.06 762 748 154.2
B 10 245 163917 1125.28 763 744 145.0
B 8 234 33640 226.86 763 744 145.0
B 0 187 28773 193.29 763 744 145.0
C 13 61 5708 28.57 749 753 173.4
C 14 67 5421 26.92 749 753 173.4
C 9 68 3608 16.46 749 753 173.4
D 12 227 439378 2451.94 740 724 178.9
D 1 52 218646 1218.12 740 724 178.9
D 10 172 115971 644.19 740 724 178.9

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