ASTROSAT CZTI

Data Quality Report

Orbit 46215

Creation date: 2024-06-27T23:20:28.554335
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/AS1A13_093T12_9000006184_46215cztM0_level2.fits modeM0/AS1A13_093T12_9000006184_46215cztM0_level2_quad_clean.evt
Size (bytes)499,132,800109,725,120
Size476.0 MB 104.6 MB
Events in quadrant A6,505,783697,225
Events in quadrant B3,712,941760,986
Events in quadrant C3,326,318748,148
Events in quadrant D4,424,621660,978

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238052
B0153643
C0142472
D0178542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65275658.656351%
B65272533.876207%
C65271592.436035%
D65273805.821970%

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 8832 6527 126 126 1.43% 1.93%
B 8832 6528 30 30 0.34% 0.46%
C 8832 6528 41 41 0.46% 0.63%
D 8832 6528 198 198 2.24% 3.03%

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 10 83 3133892 20512.24 740 723 152.7
A 9 191 335220 2189.89 740 723 152.7
A 13 248 82772 537.16 740 723 152.7
B 3 112 478194 3276.4 753 729 145.7
B 5 172 113825 776.07 753 729 145.7
B 5 255 78021 530.38 753 729 145.7
C 12 2 242155 1374.68 755 757 175.6
C 5 49 102468 579.21 755 757 175.6
C 1 3 14541 78.5 755 757 175.6
D 1 52 1183912 6397.69 741 719 184.9
D 2 249 151396 814.73 741 719 184.9
D 12 128 86815 465.53 741 719 184.9

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