ASTROSAT CZTI

Data Quality Report

Orbit 45623

Creation date: 2024-06-27T23:14:20.498756
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_071T08_9000006114_45623cztM0_level2.fits modeM0/AS1A13_071T08_9000006114_45623cztM0_level2_quad_clean.evt
Size (bytes)592,433,280117,138,240
Size565.0 MB 111.7 MB
Events in quadrant A6,313,423801,065
Events in quadrant B4,785,200779,473
Events in quadrant C3,553,809780,134
Events in quadrant D6,704,075670,811

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239160
B0192820
C0160900
D0250760

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74001652.229730%
B74015046.809891%
C7401620.837725%
D74016268.458316%

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 7400 7400 9 9 0.12% 0.12%
B 7401 7401 318 318 4.30% 4.30%
C 7401 7401 49 49 0.66% 0.66%
D 7401 7401 546 546 7.38% 7.38%

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 3004276 17327.17 834 815 173.3
A 10 255 31664 177.97 834 815 173.3
A 0 243 17015 93.46 834 815 173.3
B 5 172 883476 5531.58 813 792 159.6
B 3 112 193563 1208.05 813 792 159.6
B 4 170 152103 948.23 813 792 159.6
C 14 254 308689 1615.21 812 817 190.6
C 3 233 26949 137.1 812 817 190.6
C 0 207 24138 122.35 812 817 190.6
D 11 241 1084467 5405.81 792 767 200.5
D 8 48 750591 3740.34 792 767 200.5
D 8 129 746370 3719.29 792 767 200.5

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