ASTROSAT CZTI

Data Quality Report

Orbit 47049

Creation date: 2024-06-27T23:31:09.600120
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/AS1C09_005T01_9000006296_47049cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47049cztM0_level2_quad_clean.evt
Size (bytes)535,654,080110,949,120
Size510.8 MB 105.8 MB
Events in quadrant A6,780,386732,273
Events in quadrant B4,341,456748,933
Events in quadrant C3,317,895731,134
Events in quadrant D4,840,396654,410

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247632
B0175402
C0150732
D0194112

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70682303.254103%
B70692773.918517%
C70691031.457066%
D70693585.064366%

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 8518 7070 15 15 0.18% 0.21%
B 8519 7071 127 127 1.49% 1.80%
C 8519 7071 42 42 0.49% 0.59%
D 8519 7071 289 289 3.39% 4.09%

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 3743484 23417.54 769 751 159.8
A 13 248 32477 198.5 769 751 159.8
A 9 191 20960 126.44 769 751 159.8
B 3 112 772074 5200.66 766 740 148.3
B 5 172 295364 1986.48 766 740 148.3
B 4 171 77007 514.22 766 740 148.3
C 12 2 210426 1162.05 767 769 180.4
C 14 254 83421 458.11 767 769 180.4
C 12 250 17124 90.65 767 769 180.4
D 1 52 1179226 6264.39 754 731 188.1
D 2 249 234563 1242.95 754 731 188.1
D 14 34 141782 749.77 754 731 188.1

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