ASTROSAT CZTI

Data Quality Report

Orbit 22611

Creation date: 2024-06-27T18:43:32.673324
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/AS1A07_049T01_9000003358_22611cztM0_level2.evt modeM0/AS1A07_049T01_9000003358_22611cztM0_level2_quad_clean.evt
Size (bytes)450,702,72091,339,200
Size429.8 MB 87.1 MB
Events in quadrant A3,076,380593,784
Events in quadrant B3,234,212605,728
Events in quadrant C3,154,520571,007
Events in quadrant D3,754,041553,651

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131522
B0135952
C0132322
D0153452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6330350.552923%
B6330390.616114%
C6330630.995261%
D63301031.627172%

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 7480 6331 0 0 0.00% 0.00%
B 7480 6331 6 6 0.08% 0.09%
C 7480 6331 0 0 0.00% 0.00%
D 7480 6331 90 90 1.20% 1.42%

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 13 254 10429 60.13 796 781 160.4
A 0 226 6956 38.49 796 781 160.4
A 3 137 6643 36.54 796 781 160.4
B 0 228 32982 213.83 799 779 150.6
B 0 230 28765 185.83 799 779 150.6
B 0 229 27273 175.92 799 779 150.6
C 14 238 120849 666.85 769 777 180.1
C 0 10 19666 104.9 769 777 180.1
C 10 222 10501 54.0 769 777 180.1
D 1 52 393292 2067.18 779 757 189.9
D 7 38 355639 1868.89 779 757 189.9
D 10 199 32609 167.74 779 757 189.9

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