ASTROSAT CZTI

Data Quality Report

Orbit 06513

Creation date: 2024-06-27T15:08:15.832984
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/AS1G06_136T02_9000000876_06513cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06513cztM0_level2_quad_clean.evt
Size (bytes)428,152,32094,674,240
Size408.3 MB 90.3 MB
Events in quadrant A3,187,214608,909
Events in quadrant B3,130,524626,296
Events in quadrant C2,944,047604,963
Events in quadrant D3,260,080570,943

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138983
B0136292
C0133632
D0143622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6534340.520355%
B6534430.658096%
C653490.137741%
D6534570.872360%

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 7869 6535 0 0 0.00% 0.00%
B 7869 6535 3 3 0.04% 0.05%
C 7869 6535 0 0 0.00% 0.00%
D 7869 6535 30 30 0.38% 0.46%

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 15 236 168411 1074.35 775 758 156.1
A 8 15 33882 212.27 775 758 156.1
A 0 226 7496 43.18 775 758 156.1
B 0 219 24617 161.94 784 768 147.3
B 4 48 22862 150.03 784 768 147.3
B 5 32 16931 109.75 784 768 147.3
C 8 128 6495 33.39 749 754 172.0
C 4 254 6298 32.24 749 754 172.0
C 13 61 5964 30.3 749 754 172.0
D 2 152 134411 749.73 741 718 178.3
D 2 136 86834 482.93 741 718 178.3
D 2 14 48398 267.38 741 718 178.3

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