ASTROSAT CZTI

Data Quality Report

Orbit 45187

Creation date: 2024-06-27T23:10:22.356574
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_049T05_9000006050_45187cztM0_level2.fits modeM0/AS1A13_049T05_9000006050_45187cztM0_level2_quad_clean.evt
Size (bytes)521,300,160113,186,880
Size497.2 MB 107.9 MB
Events in quadrant A5,702,574745,311
Events in quadrant B3,931,808773,274
Events in quadrant C3,306,829755,462
Events in quadrant D5,808,293661,606

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220421
B0162901
C0147981
D0221411

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70552513.557760%
B70552593.671155%
C70551401.984408%
D70555247.427356%

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 7645 7055 9 9 0.12% 0.13%
B 7645 7055 38 38 0.50% 0.54%
C 7645 7056 4 4 0.05% 0.06%
D 7645 7055 368 368 4.81% 5.22%

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 2505884 15007.39 803 782 166.9
A 15 174 18670 107.16 803 782 166.9
A 0 243 16721 95.49 803 782 166.9
B 4 170 457736 2873.77 804 775 159.0
B 3 112 145657 911.15 804 775 159.0
B 5 32 72316 449.91 804 775 159.0
C 3 233 99178 522.54 802 807 188.3
C 12 2 32384 167.73 802 807 188.3
C 14 254 26438 136.15 802 807 188.3
D 13 249 1470962 7569.71 781 756 194.2
D 9 49 511126 2627.76 781 756 194.2
D 1 47 279193 1433.6 781 756 194.2

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