ASTROSAT CZTI

Data Quality Report

Orbit 10120

Creation date: 2024-06-27T15:55:15.383087
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_013T01_9000001456_10120cztM0_level2.evt modeM0/AS1G07_013T01_9000001456_10120cztM0_level2_quad_clean.evt
Size (bytes)492,120,000125,939,520
Size469.3 MB 120.1 MB
Events in quadrant A3,080,767841,268
Events in quadrant B3,239,813845,612
Events in quadrant C2,977,456855,521
Events in quadrant D5,138,988793,001

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01412822
B01449524
C01396619
D01994527

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6879190.276203%
B6877340.494402%
C6880110.159884%
D68803445.000000%

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 7658 6889 2 2 0.03% 0.03%
B 7658 6889 1 1 0.01% 0.01%
C 7658 6889 0 0 0.00% 0.00%
D 7658 6889 247 247 3.23% 3.59%

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 50054 312.15 779 762 157.9
A 15 174 15688 94.52 779 762 157.9
A 8 15 15189 91.36 779 762 157.9
B 0 214 58939 393.25 782 763 147.9
B 0 219 34286 226.6 782 763 147.9
B 0 189 31068 204.85 782 763 147.9
C 14 67 7287 37.48 759 763 174.1
C 13 61 5809 28.99 759 763 174.1
C 14 234 5085 24.83 759 763 174.1
D 1 52 1255058 7063.74 739 718 177.6
D 8 195 291936 1639.98 739 718 177.6
D 12 233 229561 1288.72 739 718 177.6

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